You work for a video streaming company that has two monthly plans to choose from plan1: a flat rate of 7$ per month

Step-by-step explanation:

The cost will be 7$ per month

Best regards

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: