Numbers 1, 3, and 5 please

What is three-step process of controlling What is the payback if an investment's cost is $45,000 and the after-tax benefit is $2,000 per year? An interest payment of $650 in a 20 percent tax bracket would result in a tax savings of Joe Morton buys a piece of equipment for $200,000. He puts down $40,000 and finances $160,000. Joe's opportunity cost is 4 percent, and the lender's interest rate is 8 percent. Find the weighted average cost of capital (WACC). Lisa Camry bought a $15,000 car with a $3,000 down payment. The balance is financed by a manufacturer's sale offering 0-percent annual interest. If Lisa's opportunity cost is 5 percent, what is her WACC? If the 10 percent present value ordinary annuity factor is 8.5136 and the 11 percent PVAF is 7.9633, a PVAF of 8.1234 correlates to an internal rate of return of The Ohm Depot Co is currently considering the purchase of a new machine that would increase the speed of manufacturing electronic equipment and save money. The