Mark has a coupon for 10% off his entire purchase. if mark buys $41.00 worth of merchandise, how much will mark spend?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation: