Topic: Averages, Statistics, Mean, Median and Mode 12. A group of 50 people were asked how many books they had read in the previous year, the results are shown in the frequency table below. ;

Calculate the mean number of books read per person.

Number of books 0 1 2 3 4 5 6 7 8

Frequency 5 5 6 9 11 7 4 2 1

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Graph the equationy= x+3[tex]y = x + 3[/tex]