Maximizing prot. A store sells two brands of laptop sleeves. The store pays $25 for each brand A sleeve and $30 for each brand B sleeve. A consulting rm has estimated the daily de mand equations for these two competitive products to be .r = 130 4p + q Demand equation for brand A y = 115 + 2p 3q Demand equation for brand 3 where p is the selling price for brand A and q is the selling price for brand B. (A) Determine the demands x and y when p = $40 and q = $50; whenp = $45 and q = $55. (B) How should the store price each brand of sleeve to maximize daily prots? What is the maximum daily prot? [Hint C = 25x + 30y, K = px + qy, and P = R C.]