I don't exactly understand ​

Write a real-world word problem that can be solved by adding 34.99 and 5.79. then solve

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

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?