The Moon Hotel spends $157,300 a week to pay bills and maintains a lower cash balance limit of $50,000. The standard deviation of the disbursements is $11,307. The applicable weekly interest rate is .043 percent and the fixed cost of transferring funds is $44. What is the optimal upper cash limit based on the Miller-Orr model

Here are the expected cash flows for three projects: cash flows (dollars) project year: 0 1 2 3 4 a − 6,100 + 1,275 + 1,275 + 3,550 0 b − 2,100 0 + 2,100 + 2,550 + 3,550 c − 6,100 + 1,275 + 1,275 + 3,550 + 5,550 a. what is the payback period on each of the projects? b. if you use a cutoff period of 2 years, which projects would you accept?