At the beginning of months 1, 2, 3, and 4, the Simplex Company receives certain revenues, after which it pays the bills:

Revenues Bills
Month 1 $800 $600
Month 2 $800 $500
Month 3 $300 $500
Month 4 $300 $250

Any money left over may be invested for 1 month at an interest rate of 1%, or for two months at an interest rate of 3%. For example, x dollars invested at the beginning of month 2 becomes 1.01x dollars at the beginning of month 3, and 1.03x dollars at the beginning of month 4. Formulate a linear program that determines an investment strategy that maximizes cash on hand at the beginning of month 5.

Kiona co. set up a petty cash fund for payments of small amounts. the following transactions involving the petty cash fund occurred in may (the last month of the company's fiscal year). may 1 prepared a company check for $350 to establish the petty cash fund. 15 prepared a company check to replenish the fund for the following expenditures made since may 1. a. paid $109.20 for janitorial services. b. paid $89.15 for miscellaneous expenses. c. paid postage expenses of $60.90. d. paid $80.01 to the county gazette (the local newspaper) for an advertisement. e. counted $26.84 remaining in the petty cashbox. 16 prepared a company check for $200 to increase the fund to $550. 31 the petty cashier reports that $380.27 cash remains in the fund. a company check is drawn to replenish the fund for the following expenditures made since may 15. f. paid postage expenses of $59.10. g. reimbursed the office manager for business mileage, $47.05. h. paid $48.58 to deliver merchandise to a customer, terms fob destination. 31 the company decides that the may 16 increase in the fund was too large. it reduces the fund by $50, leaving a total of $500.