*Urgent required 2 hours*

NEED 30 WORDS EXPLANATION AND CALCULATION FOR EACH. THANK YOU.

Topic 6 CAT A "mom and pop store" is going to make a $15,000 investment that will produce the following cash inflows: Year 1....\$11,000 Year 2....\$9,000 Year 3.....\$5,800 a). What is the payback period for this investment? b). Assuming a discount rate/cost of capital of 10\%, what is the NPV of this investment and should it be accepted