the management of Weimar inc a civil engineering design company is considering an investment in a high quality blueprint printer with the following cash flows: Year 1 $42,000 and cash inflow $3000, year 2 $5,000 cash inflow $6,000, year 3 cash inflow $12,000, year 4 cash inflow $14,000, year 5 cash inflow $16,000, year 6 cash inflow $15,000, year 7 cash inflow $13,000, year 8 cash inflow $11,000, year 9 cash inflow $10,000, year 10 cash inflow $10,000. determine the payback period of the investment.