The average growth rate for children after the age of 2 and through the teen years is approximately 2ż inches per year. The function f(x) = 2.5x + 30 can be used to predict a child's height, in inches, at age x.
Part A
Determine the value of f(7) and state what this means in terms of the context.

You call the pizza store and find out that eachpizza has 12 slices. you expect 16 people tocome, and you estimate each person will eat 3slices. how many pizzas should you order

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

What percent of the circle below is shaded?