Hello there.
<span>Question: What is 2c+7=21 please help
Answer: Solve the equation:
Subtract 7 from both sides:
21 - 7 = 14
2c = 14.
Divide both sides by 2:
14/2 = 7
c = 7.
</span>Hope This Helps You!
Good Luck Studying ^-^
Answer:
x g(x + 2)-1 h(x)
-2 g(-2+2)-1 -1
-1 g(-1+2)-1 0
0 g(0+2)-1 1
1 g(1+2)-1 2
2 g(2+2)-1 3
Part A: 3
Part B: -1
Step-by-step explanation:
When you have questions like these all you have to do is plug in and solve.
For example I will do h(2) & h(-2) for reference.
<em><u>h(2):</u></em>

<em><u>h(-2):</u></em>

An hour and 15 minutes. Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!
Perfect-square trinomials are of the form:

and are expressed in squared-binomial form as: 
The only possible choice for squared-binomial form is

Answer: correct choice is A.
Good to hear.dose he have a YouTube account?