Sum of first p terms of an ap is 0 , if 'a' is the first term , prove that the sum of next q terms is -aq(p+q)/p-1, p is not equal to 0

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

On a piece of paper graph f(x)=5•(0.4)^x

Which shows the graph of the solution set of 3y – 2x > –18?