Principal Yang reported the state test scores from some students at his school. How many students scored at least 30 points but fewer than 70 points?

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:

1/2*qr*rs

step-by-step explanation:

yes

step-by-step explanation:

yes

step-by-step explanation:

bob the banana