5y - 10 = -25ok try this one buster.

Y= -3

Step-by-step explanation:

5y-10=-25     Add 10 on both sides

5y=-15      Divide by 5 on both sides

y=-3

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

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

happy to

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