Find the volume of this prism. 8cm,9cm,11cm
V=0.5 time 8cm time 9cm time 11cm
V(answer)=396cm2
I hope it's right.

dont understand

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:

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english, cause i can’t you