Alice earns 1.5 times her normal hourly rate for each hour she works after 40 hours in a week. she worked 50 hours this week and earned $660. what is her normal hourly rate?

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: