F(x)=-x+12/4 Not sure if this is right..
2/3*5/4
2*5/3*4
10/3*5
10/12 simplify
5/6
Answer:

Step-by-step explanation:
step 1
Find the volume of the tank (cylinder)
The volume of cylinder is given by the formula

we have

substitute


step 2
Find the cost of rent one tank
Multiply the volume of one tank by the unit rate of $4 per cubic foot

Answer:
Discount Percent = 58.33 %
Discount Amount = $ 7.00
Step-by-step explanation: