Nick$$s Novelties, Incorporated, is considering the purchase of new electronic games to place in its amusement houses. The games would cost a total of $$300,000,$ have a fifteen$-$year useful life, and have a total salvage value of $$30,000.$ The company estimates that annual revenues and expenses associated with the games would be as follows: Revenues $ $240,000$Less operating expenses: Commissions to amusement houses$ $90,000$ Insurance$30,000$ Depreciation$18,000$ Maintenance$60,000198,000$Net operating income $ $42,0002$a$.$ Compute the simple rate of return promised by the games$\mathrm{.}2$b$.$ If the company requires a simple rate of return of at least $12\%,$ will the games be purchased?