A company purchase a piece of manufacturing equipment for an additional income. The expected income is $3,500 per semester. Its useful life is 9 years. Expenses are estimated to be $500 semiannually. If the purchase price is $34,000 and there is a salvage value of $4,500, what is the prospective rate of return (IRR) of this investment? The MARR is 10% compounded semiannually. a. IRR = 796 O b. IRRs 6.0296 c. IRR 6% d. IRR = 12%