Using the grapgh on the right which point below is the vertex

its D

Step-by-step explanation:

a vertex is the highest point and that's the only point that actually exist in the graphHope that helps...

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: