Mr. Tankard's minivan has a 21 gallon tank. He can travel 354 miles on tank of gas. How many miles per gallon does the minivan get?How many tanks does of gas will he need to travel 870 miles?

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

answer: y=0 if that is what u r looking for

the best estimate is 3 because   8 can only go into 24 3 times