please show formulas/work to explain how to answer the problems correctly

10. There is an advertisement in the newspaper offering a new 2019 Kia Stinger for $748.99 per month, zero money down. You are very interested since it has been your lifelong dream to own a Kia Stinger. The contract calls for monthly payments (the first payment due at the end of the month) over 6 years and the advertised interest rate is 8%. What is the sales price of this Kia Stinger? 11. If you invest in a fund that promises to pay an 8% annual rate that is compounded quarterly, what will be the effective annual rate (EAR) you earn? 12. An investor is considering the purchase of state of the art industrial 3D Printer. An analysis indicates that this 3D Printer will produce a cash flow of $3,000 per year indefinitely. If the investor requires a return of 8 percent on investments of this type, what is the most he or she should be willing to pay for this 3D Printer