Suppose that new copies cost $140 and used copies cost $60. assume the bookstore currently has 50 new copies and 50 used copies. what is the expected value of total revenue from the sale of the next 25 copies purchased? [hint: let h(x) = the revenue when x of the 25 purchasers want new copies. express this as a linear function.]

Match the situations that will develop one's personality and those that won't peter is surrounded by friends who are always encouraging him jonathan always watches television when he wants to take a break from his books libby sets small targets for herself and strives to achieve them. the smiths indulge in an animated discussion on varied topics every evening after dinner. brook loves junk food and exercises once in a while. develops your personality develops doesn't develop your personality