Answer:

Step-by-step explanation:
Isolate the variable and divide by the coefficient to solve for a variable.

Answer:
A
Step-by-step explanation:
I would love to help but I can't see the figure anywhere.
Answer:
f(-5)
Step-by-step explanation:
because if X=-5 you just replace all of the X's in the equation. the whole equation would be f(-5) 45(-5)+40