Answer:
3.
10y^6km/10y^3hr =y^3 km/hr
y^3 km/hr
4.
72x^2/12 = 6x^2
5.
A = lw
l = A/w = 64x^4/4x^2
l = 16x^2
6.
A = s^2 = (2w^2)^2
A = 4w^4
7.
A = lw = (10)(x)
A = 10x
