What is the balance in an account where $250 was deposited at 1% interest after 4 years?

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

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)