Kevin buys 7.2 gallons of gas for $24.84 Find the unit price in dollars per gallon.
If necessary, round your answer to the nearest cent.

mxb67

step-by-step explanation:

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15