Round each addend to the nearest whole number and estimate the sum.

19.43 + 11.5 + 3.08

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:

16.9 times 2.85

step-by-step explanation:

d. vertex

step-by-step explanation:

1010: 3030

is it i think