Based on the sales record for prior years, the manager of the supply store knows that if the store lowers the price of a print cartridge by 25% then the number of cartridges purchased increases by 35%. Suppose the store had lowered the price of print cartridges by 25% in May. What would be the ranking for May? Explain.

need more information

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

d no solution

step-by-step explanation: