Ineed find the solution of this system of equations. separate the x- and y- values with a comma. x-2y=-7 x-y=9

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

2x^2+5x+17

your welcome. : )