A manufacture has been selling 1000 television sets a week at $510 each. A market survey indicates that for each $22 rebate offered to a buyer, the number of sets sold will increase by 220 per week. i. Find the demand function 13(3), where a: is the number of the television sets sold per week. PM = :] ii. How large rebate should the company offer to a buyer, in order to maximize its revenue? $ :] iii. If the weekly cost function is 85000 + 1703:, how should it set the size of the rebate to maximize its prot? $ :l