0, Determine the payback period for an asset that has a first cost of a salvage value of SS000 anytime within 10 years of its purchase, and generates income or s6000 per year. The required return is 7% per year Find the present worth of a series of investments that starts at $1000 in year 1 and increases by 12% per year Preb per year m or 20 years. Assume the interest rate is 10%