A company makes 150 bags. 37 of the bags have buttons but no zips.
45 of the bags have zips but no buttons.
23 of the bags have neither zips nor buttons.
How many bags have zips on them?

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:

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

step-by-step explanation: