A computer store knows that if they spends $100 . x per week on television advertising, and $100 ' y per week on intemet advertising, they can sell L computers per week, where L 6x + 9y _2+x 3+y' Their weekly profit per week, not including the cost of advertising, is $300 - L (a) (2 pts) Find the retailer's total weekly prot function, in terms of x and y. (b) (5 pts) Find the the values of that maximize the retailer's total weekly profit, what this maximum prot is, and verify that the value you found is a relative maximum value. (c) (1 pts) How do we know that the profit you found in (b) is the absolute maximum profit