Answer:
14 dollars
Step-by-step explanation:
14÷2= 7
7+5=12
b
b b b b b b b b bb b b b b bb b b bb b bb bb bb b bb b b b b b b b b bb b b b b bb b bb b b b b bb b b b b b b b bb bb
f'(9) = 6
f(x) = 6x+7
The derivative is
f'(x) = 6
Evaluated at x=9
x= -1 and x= -7
hope it helps.
