Perform the operation. 3/a^2b + 2/ab^2

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2