Which property was used to simplify the expression?

distributive property
commutative property
associative property
inverse property

Mr. Sonny's science class is calculating the average number of blinks per minute. Jan blinks 126 times in 7 minutes. What is her blinking rate, in blinks per minute?

xxx yyy
5.85.85, point, 8 5.85.85, point, 8
7.57.57, point, 5 7.57.57, point, 5
11.211.211, point, 2 11.211.211, point, 2
Find the constant of proportionality (r)(r)left parenthesis, r, right parenthesis in the equation y=rxy=rxy, equals, r, x.
r =r=r, equals

HELP PLZ I WILL GIVE BRAINLIEST!!! Write the prime factorization of 675 using exponents.

Please help

.....................................................

first question:

Which mathematical property is demonstrated?

5⋅7⋅4=5⋅4⋅7


associative property of addition

commutative property of addition

commutative property of multiplication

associative property of multiplication

...................................................................................

2nd question:

Which expressions are equivalent to 4⋅(7⋅y)?

(choose all correct answers)

1. (7⋅y)⋅4

2. 4⋅7+4⋅y

3. (4⋅7)⋅y

4. 28y

5. 4⋅7⋅4⋅y

....................................................
Last question
is 3(a−b) and 3a−3b Equivalent? yes/no


is 2a(2+b) and 4ab Equivalent? Yes/no


THANK YOU!!!

Please answer asap. find x

Last year there were 205 ducks living on the pond. This year there are 20% more ducks living on the pond. How many ducks are living on the pond this year? *
~5 points
~164 ducks
~225 ducks
~246 ducks
In the above question, what was the original amount of ducks?
~205
~20
~246
~164

What is the final price of an item that cost $14 with a 75% discount

What is the value for "m" that makes the equation true?

9 =[tex]\frac{3}{8}[/tex]m

m = ?

Simplify 6(x + y) + (x - y).

6x
7x
7x + 6y
7x + 5y

So, this is hard for me ;(( But can you guys help me???

Select all that apply.

Green pencils are priced at $1.28 for 4. Blue pencils are priced at $5.52 for 24. Which of the following statements are true?

The unit rate for green pencils is $0.32
The unit rate for blue pencils is $0.28
The green pencils are priced less per pencil
The blue pencils are priced less per pencil.

need an expert verified answer

The supplementary angle of 149.8° is °. ​(Type an integer or a​ decimal.)

Which cube is a unit cube?
A cube that is 7 feet long, 7 feet tall, and 7 feet high
B a cube that is 1 meter long, 1 meter wide, and 1 meter high
C a cube that is 5 inches long, 5 inches wide, and 5 inches high
D a cube that is 15 centimeters long, 15 centimeters wide, and 15 centimeters high

Khan Academy PLEASE SOMEONE HELP FASTTT!!!!

A group of 80 students was asked to share how they get to school most of the time. The following circle graph represents their answers to the question. How many of the students walk to school most days?

0
24
20
25

Eileen's Energy Bars has determined that an energy bar measuring 3.25 inches long has a z-score of +1 and an energy bar measuring 3.50 inches long has a z-score of +2.

What is the standard deviation of the length of energy bars produced at Eileen's Energy Bars?

3.5
3.25
0.75
0.25

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA this is extra cedit in my class and i need it, can anyone help me out??

A computer manufacturer built a new facility for assembling computers. There were construction and new equipment costs. The company paid for these costs and made combined profits of $10 million after 4 years, as shown in the graph:

There is a graph of a line with Years on the x axis and Profits in millions on the y axis that passes through 0, negative 20 and 4, 10.

Which equation most closely represents the line depicted in the graph?

f(x) = −10x + 4
f of x equals fifteen halves times x minus 20
f(x) = 10x − 4
f of x equals two fifteenths times x minus 20

Part 2#
Practice (need help with 1 2 and 3)

Y it's directly proportional to root X when x=49 and y=4
Find a formula for y in terms of x

Kristi had $3,250 in her bank account. Currently, she has $2,730 in her account. What is the approximate percent of decrease in her account?

i will give brainliest :)

help me with this plz

Which number is equivalent to 3^4/3^2
A 2
B 9
C 81
D 729

Help Please I will give Brainliest and 14 Points!!

pleasee help ill give brainliest

PLEASE HELP ME ASAP!!

Fifty percent of the area of this rectangle is shaded. What is the area of the shaded region? Explain your thinking.

The change in altitude of a bird after 2 __ 1 2 seconds was –41 __ 1 4 feet. What was the average change in altitude of the bird in feet per second?

I need help it's due 1:25 (eastern time

Will Award Brainliest!!!

Three friends, Larry, Sheila, and Dawn, each begin the week with $20. The following table shows how much money the
friends have at the end of each day.
Larry
Sheila
Dawn
Day Money Remaining Day Money Remaining Day Money Remaining
1
$20
1
$20
1
$20
2
$18
2
$15
N
$14
1 2. 3 4
$9
$10
3
$7
3
4
5
$6
$5
4
$0
$2
5
$0
5
$4
At the end of the week, which of the friends has the least amount of money?
Sheila
Dawn
All friends have the same amount of money
Larry

Which sequence is represented by = 10 − 29 where x represents the term number and y represents the term?

Group of answer choices

1, -28, -57, -86, …

-29, -19, -9, 1, …

-19, -9, 1, 11, …

10, -19, -48, -77, …