For this case we have a function of the form
where:

We must find the value of the function when
. So:

By definition we have to:

Thus, the value of the function is 
Answer:

F(x)=1.2(7)+5
F(x)=8.4+5
F(x)=13.4
So the answer is $13.40
Answer:
y = 8
Step-by-step explanation:
Step 1: Write out equation
13 + 3y = 37
Step 2: Subtract 13 on both sides
3y = 24
Step 3: Divide both sides by 3
y = 8