pls solve i dont have much time only 20 min

Part 5(20 minutes, 6 points ) Evan and Brett are students at Berkelev Call. Brett is considerino w... ment that is owned by Brett. sllowing packages available: Evan spends spend his timio valking on the phone rather than (veverything can be found online now"). Brett prefers to They agree that the purchase of the $90 total using the Internet ("going online is a waste of time") Required: Allocate the $90 between Evan and Brett using (a) the stand-alone cost-allocation method, (b) the incremental cost-allocation method, (c) the Shapley value method