3. Mason G regory LLC Engineering firm borrowed $100,000 to purchase a new AC unit for ing. The annual loan payrnent is $8,880 at 8% per year for 30 years. The pany's CEO decides to make $10,000 annual payments instead, in hopes of paying n sooner. Using the interpolation method, how long will it take (to the com off the loan earest years and months) to repay the loan using the CEO's decision? (10pts) Watson Ford dealership is advertising an oil change promotion, "$30 oil change for up to 20 visit periods". If Mr. Fowler invested this money at a 2.42% interest rate per period so at the time of trade-in he can pay for the 20 oil changes, how much would he have accumulated at the time of trade-in? (10pts) 4