CAN SOMEONE PLEASE HELP ME ANSWER THIS AND SHOW ME HOW TO WORK IT? THANKS

The Ingersoll Engineering Company is considering the purchase of a gas flow meter. Its purchase price is $9,500 and another $500 will be spent shipping and installing this device. Use of the meter is expected to result in a $9,000 annual increase in revenue, and operating expenses are estimated to be $5,000 per year. The meter will be used for five years, and then it will be sold for an estimated market value of $2,500. The meter's MACRS property class is five years. Determine the after-tax IRR on this investment if the effective income tax rate (t) is 25%. If the after-tax MARR is 10%, should this gas flow meter be purchased, installed and utilized by the company? What is the payback period based on the after-tax cash flows?

The after-tax IRR on the investment is ______% (round to 1 decimal place) The gas flow meter (should/should not) be purchased, installed and utilized by the company. The simple payback period is ____ years. (round to 1 decimal place)

1 More Info GDS Recovery Rates (r) for the Six Personal Property Classes Recovery Period (and Property Class) Year 3-year 0.3333 0.4445 0.1481 0.0741 15-year 0.0500 0.0950 0.0855 0.0770 0.0693 0.0623 0.0590 0.0590 0.0591 0.0590 0.0591 0.0590 0.0591 0.0590 0.0591 0.0295 5-year 0.2000 0.3200 0.1920 0.1152 0.1152 0.0576 10-year 0.1000 0.1800 0.1440 0.1152 0.0922 0.0737 0.0655 0.0655 0.0656 0.0655 0.0328 20-year 0.0375 0.0722 0.0668 0.0618 0.0571 0.0528 0.0489 0.0452 0.0447 0.0447 0.0446 0.0446 0.0446 0.0446 0.0446 0.0446 0.0446 0.0446 0.0446 0.0446 0.0223 7-year 0.1429 0.2449 0.1749 0.1249 0.0893 0.0892 0.0893 0.0446 4 10 12 13 18 19 20 21 . These rates are determined by applying the 200% DB method (with switchover to the SL method) to the recovery period with the half-year convention applied to the first and last years. Rates for each period must sum to 1.0000 These rates are determined with the 150% DB method instead of the 200% DB method (with switchover to the SL method) and are rounded off to four decimal places