Mario spent a total of $87.33 last week, but did not keep a perfect record of where his money went. fortunately, mario does have all but one of his receipts. he enters all of the information he has into his expense spreadsheet as shown below.

a) t'(-3, 6) and v'(0, 3)  

step-by-step explanation:

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