Mary is 21 years old. Her age is 9 years more than 3 times Henry’s age. Which equation can be used to determine x, Henry’s age in years?

HELP ASAP PLEASE

A: 3x + 9 = 21
B: 21 + x = 3(9)
C: 9 + 21 = 3x
D: x + 9 = 21

Answer:

i think its a

Step-by-step explanation:

Answer:

21 = 9+3x or A

Step-by-step explanation:

the answer is a :)

Lance bought n notebooks that cost $0.75 each and p pens that cost $0.55 each. A 6.25% sales tax will be applied to the total cost. Which expression represents the total amount Lance paid, including tax?

A. 0.0625 (n + p) + 0.0625(0.75n + 0.55p)

B. (0.75n + 0.55p) + 0.0625(0.75 + 0.55p)

C. 0.75(0.0625n) + 0.55(0.0625n)

D.0.75(1.0625n) + 0.55(1.0625n)

The ratio of girls to boys in the photography club is 7 to 3. Which ratio could represent the members of the photography club?

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B 14 girls : 9 boys
C 21 girls : 9 boys
D 21 girls : 15 boys

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Isabelle is plotted a pentagon on a grid. So far, she has plotted and connected the three points shown on the grid below. To complete the pentagon, she can choose only from the points below.
(2.0) (-2,0), (-2, 4), (2, 4)
How can Isabelle complete her pentagon?
Connect the point already at (0-2) to a new point at (2.0), and then connect
(2.0) to (-2,4)
Connect the point already at (0-2) to a new point at (-2, 0), and then connect (-2, 0) to (-2. 4).
Connect the point already at (0-2) to a new point at (-2, 0), connect (-2, 0) to (24), and then connect (2,4)
to (-2.4)
Connect the point already at (0-2) to a new point at (2.0), connect
(20) to (2.4) and then connect (2.4) to (-2. 4)
Mark this and retum
Save and Exit
Nex
Sub
C

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yes heavenly father, help me through these tough ways of life, and answer for me

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Evaluate (Two-fifths) cubed. Check all that apply.
The exponent is Two-fifths.
The expanded form is (Two-fifths) (two-fifths) (two-fifths).
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27.2
E E
С
What is the measure of ZD in degrees?
A
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B
31.4
С
35.6
OD
62.8

1.
Simplify: 5 + p > 3
p -2
p > 8

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