Find the perimeter and area of a square with side lengths of 16

Look at attachment. has all info needed. need

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply