Rectangular pyramid: volume 448 inches cubed, base edge 12 inches.; base length 8 inches

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

Collin did the work to see if 10 is a solution to the equation r/4=2.4