The evil queen gave snow white 28 apples. she gave 7 apples to the dwarf enter the percentage of apples snow white has left

75%

Step-by-step explanation:

she gave away 7 apples and has 28 - 7 = 21 left

To express as a percentage, multiply the fraction left by 100%

= × 100% = = 75%

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