This is for a test ! can anyone please help me ?

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

27 is what percent of 108? 27 is % of 108

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: