What is the area of the two triangles and the quadrilateral

Hope this is correct

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:

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!