Can someone help me with questions 2, 3 and 5 as soon as they can? Thanks so much

i know number 5  input add 1  output take away 1

Step-by-step explanation:

go and ask your mom to you

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