A college bookstore has been selling one particular tee shirt for a year now. During the Fal term, 100 were sorld at the price of $5 each. During the following Spring term, the price was raised to $7; consequently, only 80 were sold .Suppose that the number of tee shirts sold (N) depends linearly on the price charged (x). Write an equations showing in this dependence. Indentidy & describe the slope & the N-intercept. Then graph the function Suppose that it costs the bookstore $3 for each shirt. Calculate the total profit during terms where they charge $5, 6,7,8,9,$10.