Answer math questions correctly for brainy

1. to find length of cube using volume: cubic root of volume so ∛3375 = 15 ft

  check 15^3 = 3375

2.  volume of cube = L^3 = 18^3 = 5,832 m^3

3. volume = 2 x 2 x 2 = 8cm

1cm = 10 mm

8 x 10 = 80 mm^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