suppose Ruth and has four outs she can choose from to get from school to library and favorites from the library to her home. How many routes are there from Ruth in school could her home with a stop at the library

the answer is d

step-by-step explanation:

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: