Answer:

Step-by-step explanation:
Let

We factor 2 to obtain;

We factor the polynomial within the parenthesis by grouping.



We apply difference of two squares on the second factor: 

We now compare to;

It is now obvious that 
This is just to easy the correct answer is A
Answer:
x=16.1
Step-by-step explanation:

Divide both sides by -0.5

Add 7.1 to both sides

Hope this helps!
V = πr ^2 h
V = π (3)^2 (5)
V = π (9) (5)
V = π 45
V = 141.3 in
141.3 divided by 8 = 17.7
$9.00 per hour. take 45 and divide by 5 you get 9.