I need help with these questions plz help

Answer:

1.A=bh/2

2A=bh

2A/b=h

  answer                   check

2.f(x)=21-6x               f(5)=21-6(5)            

 g(x)=2x/5-11            f(5)=21-30

21-6x=2x/5-11            f(5)=-9

21=32x/5-11              g(5)=2(5)/5-11

(5)32=32x/5(5)         g(5)= 10/5-11

160=32x                    g(5)=2-11

5=x                             g(5)=-9

3. f(7)=3(7)-7

   f(7)= 21-7

   f(7)= 14

Step-by-step explanation:

Kelly travels 450 miles for work every 3 weeks. How many miles does she travel each week?​

Alex made a rectangular blanket that has an area of 8 square feet the length of his blanket is 8 feet what is the width in feet of his blanket

Can you help me? (BRAINLIEST IF CORREECT! and please dont guess this is important :D)

The Invasion of the Lionfish


What was once just an attractive aquarium fish has recently become one of the biggest menaces in the Atlantic. The lionfish was accidentally introduced into the Atlantic Ocean in the 1990s. Because it has no natural predators, it has adapted quickly to its new home. The lionfish now threatens to destroy native fish populations in the Atlantic, Caribbean, and Gulf of Mexico.


The lionfish spreads quite rapidly. Lionfish spread faster than any other invading species. Experts have called the invasion in the Atlantic the worst marine invasion of all time. The lionfish's success comes from an ability to reproduce all year round. In addition, they are greedy eaters with a fondness for small fish and crustaceans. They will eat anything smaller than they are. Lionfish love the warm waters of the Gulf of Mexico. Since their first sighting, they have rapidly multiplied. In some locations, scientists estimate that lionfish populations exploded by 700 percent between 2004 and 2008 alone.


To combat the invasion, wildlife agencies have sponsored lionfish derbies. In these derbies, local scuba divers are invited to harvest lionfish. In addition, many states offer recipes for preparing and eating lionfish to encourage harvesting. Lionfish have to be handled carefully because of their venomous spines, but they are apparently delicious. Increasing the harvest of lionfish will help. However, scientists estimate that more than a quarter of the population would have to be taken every month to stop the growing population.


The lionfish has targeted our most fragile and important ecosystems. Scientists are working tirelessly to learn as much as they can about this predator. We may never be able to completely remove the threat, but many fishermen and seafood fans are hoping we can figure out how to control it.


Work Cited

Wilcox, Christie. "The Worst Marine Invasion Ever." Slate. July 1, 2013.

http://goo.gl/Vlxpe


Read this line from the text:


In addition, they are greedy eaters with a fondness for small fish and crustaceans.


What does greedy mean in this sentence?


A.They take more than they need.

B.They have little to fear from others.

C.They cannot be controlled.

D.They have a weight problem.

What is the answer to this question ..............................................................................................................................................................................................................................................................................................................................................Has anyone elses weekend gone like this

slope of the line that passes through the points

what is the area of a circle with a radius of 5m?

Z+k, when z=1 and k = 7

what is the volume of the prism​

Find the volume of a right circular cone that has a height of 11.9 ft and a base with a radius of 16.3 ft. Round your answer to the nearest tenth of a cubic foot.

Find the mean
13, 10, 10, 17, 10

find the difference and simplify 3/4 - 2/8

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Its a linear equation. 6x + 5= 9x - 19
Solve in steps.

Could some1 help with this?

I need help pleaseeeeee

Can someone help me pls

Factor 18r+15s escribe tu respuesta como un producto con un número entero >1?

Now you try. What is the base 10 representation of 1425?
29
47
72
325

A rectangular banner has a length that is two feet shorter than twice its height, ℎ. If the expression ℎ(2ℎ−2) represents the area of the banner, what is the height of the banner whose area is 60

Lindsey constructs a triangle with one side 3 inches long and another side 9 inches long. Which is not a possible length for the third side?

Solve for the nearest tenth
*

Stephen ate 1/3 of a bag of jelly beans and Jon ate 1/4 of the bag. What fraction of the jelly beans were left?

i need help 50 pts plz asap

List six consecutive prime numbers

SOMEONE PLSSSS HELP ME!!!!!!!!!!!!!!!!!!!!

If 42x+1 = 4, then x =

Olivia and Jamie share
sweets in the ratio 3: 7. If
Olivia gets 27 how many
sweets does Jamie get?

PLZZZZ HELP ME!!!!!Subtract 11/14-2/7?Make sure your answer is fully reduced.​

how would i show work on this? A DATA set shows the number of minutes each of 153,477 students takes to complete a
reading test. The median completion time is 110 minutes. The interquartile range is 34. Which
statement about the completion times is most likely to be true?
Of these students, 25% complete the test in 110 minutes or less.
B. Of these students, 50% complete the test in 110 minutes or less.
C. Of these students, 75% complete the test in 127 minutes or less.
D. Of these students, 75% complete the test in 144 minutes or less.

75% of the students in chemistry have had algebra. If there are 300 students in chemistry, how many of them have not had algebra?