The Substitution Property of Equality states that if m
2+ m3=m25 and m_2 - 25, then —- - m25.

25+ m22

m_2+m_3

25

25+ m23

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

sorry man i accidentally pressed yes my bad

step-by-step explanation:

the answer should be 3.54 g/cm^3