Arusha draws a rectangular prism that is made up of two connected cubes, with edge length of e. The surface area of the rectangular prism is represented by the formula surface area = 10e2，and the volume of the prism is represented by the formula volume= 2e3.A）what is the surface area of the prism if the edge length of each connected cube is 5 centimeters?B) Arusha plans to build the prism and partially fill it with 150 cubic centimeters of sand. What fraction of the prism volume will be filled by the sand?

To solve this problem you must apply the proccedure shown below:

 A) What is the surface area of the prism if the edge length of each connected cube is 5 centimeters?

 - You must to substute e=5 cm into the formula given in the problem:
 A=10e^2
 A=10(5)^2
 A=250 cm^2

 B) Arusha plans to build the prism and partially fill it with 150 cubic centimeters of sand. What fraction of the prism volume will be filled by the sand?

- First, you need to calculate the volume:

 V=2e^3
 V=2(5)^3
 V=250 cm^3

 250 cm^3----100
 150 cm^3----x

 x=150x100/250
 x=60%