How long will you have to maintain a business that has an income of $5000 per year

Question:

How long will you have to maintain a business that has an income of $5000 per year and expenses of $1500 per year if your initial investment was $28,000 and your MARR is 10% per year?

(a) Less than 6 years

(b) 8 years

(d) 17 years

MARR
Minimum Acceptable Rate of Return (MARR), or hurdle rate is the minimum rate of return on a project a manager or company is willing to accept before starting a project, given its risk and the opportunity cost of forgoing other...