How do changes in dimensions affect the volume of common geometric solids?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

5.(04.07) two different plants grow each year at different rates, which are represented by the functions f(x) = 4* and g(x) = 5x + 2. what is the first year the f(x) height is greater than the g(x) height? year 3 year 0 year 2 year 1

What is the average rate of change for this function for the interval from x=2 to x=4 ?