Write the following fractions as divisions and hence as whole numbers: a. 15/3 b. 21/21 c. 81/9 d. 0/5 Will mark correct brainliest and please answer all :)

a) 15 divided by 3 which equals 5

b) 21 divided by 21 which equals 1

c) 81 divided by 9 which equals 9

d) 0 divided by 5 which equals 0

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