The original cost of an item is $64 but u have to pay $78.08. what is the markup of the item (as percent)

(new - original)/original = mark up

(78.08-64)/64= mark up

14.08/64 =mark up

.22 = mark up

multiply by 100 to get to a percent

mark up = 22 percent

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94