Eddie's mother has a large collection of shoes. She has 20 pairs of shoes, and 2 of them are espadrilles.
If Eddie's mother chose a pair of shoes at random, what is the
probability that the shoes would be espadrilles?

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:

the correct answer is the last option

is it like a multiple choice? if so then i need the multiple choice so i can get and understanding on what the answers is so that i can explain it to you