There are about 3.72*10^10 cells in the average human body. The body replaces itself with a new set of cells approximately every 7 years. If the average lifespan of a human is 79 years, approximately how many cells will an average human replace in their lifetime? Write the answer in scientific notation and round to the nearest tenth.

How to do this , and can some one explain

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?