$11)$ A car dealer offers payments of $$479$ per month for $72$ months on a $$33,000$ purchase of a car, but you put down a $$3,000$ downpayment. What is the loans APR? a$\mathrm{.}4\mathrm{.}70\%$ b$\mathrm{.}6\mathrm{.}58\%$ c$\mathrm{.}9\mathrm{.}00\%$ d$\mathrm{.}7\mathrm{.}84\%$