Step-by-step explanation:
$15 initial fee. $2 per hour. $35 limit.
35 - 15 = 20
After the initial fee, he has $20 left.
20 ÷ 2 = 10
He can rent the metal detector for 10 hours.
Answer:
72
Step-by-step explanation:

To do these, you have to place the entire function inside the parent function's variables.
You are inputting the value of the function g(x) into f(x)
Hello,
Assume x the side of the square.
(x+7)²=4x²
==> ((x+7)-2x)((x+7)+2x)=0
==> (-x+7)(3x+7)=0
==> x=7 or x=-7/3 (to exclude since side must be positive)
Proof:
(7+7)²=196
4*49=196
Answer:
-3
Step-by-step explanation:
you subtract the 7 on both sides and divide by -1 because it has a - on the m