help me with question #1 and #2

thank you

Annuities 1. Nichole bought a $15,000 car and after using it for 5 years she sold it for $2,500. Determine the EUAC consider an interest rate of 7% per year. Hint only consider capital costs. 2. Sam is thinking about buying a new 3D printer. The printer costs $13,000 and requires a yearly maintenance of $2,000. Sam thinks that he may be able to earn $7,000 per year by providing 3D printing services to the local community. Consider that the printer may work for 10 years. Use a 10\% yearly interest rate determine the following: a. EUAW with no salvage value b. EUAW with a salvage value of $3,500