I need help in these questions. I have only 30 minutes, please do them correctly and 100%

Save Anne Question 43 5 points What is the present value of $400 to be received at the beginning of each year for four years if the discount rate is 1196. Remember, the payments will be received at the beginning of each year (annuity due). $1.412.52 $1.394.74 $1,377.49 $1.360.73 $1.240.98 Question 45 5 points Save Answer Samuelson Electronics has a required payback period of three years for all of its projects. Currently, the firm is analyzing two independent projects. Project A has an expected payback period of 2.8 years and a net present value of $6.800. Project B has an expected payback period of 3.1 years with a net present value of $28,400. Which projects should be accepted based on the payback decision rule? O Project A only. O Project B only. O Both A and B. Neither A nor B. Either, but not both projects. Question 46 5 points Save As A new machine costing 52.250,000 is considered three-year property and is being depreciated using the four MACRS rates provided below. The machine will produce 52.025.000 in annual revenues and $1,012,500 in annual cash expenses. Assume a 30% tax rate. What is the operating cash flow in year 1? MACRS Rate - Year 1: 33.33% MACRS Rate - Year 2: 44,4596 MACRS Rate - Year 3: 14.81% MACRS Rate - Year 4: 7.419 $933.728 O $825,458 O $758.768 O $625,458 O $562.482