please help with these three questions

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The expected average rate of return for a proposed investment of $6,940,000 in a fixed asset, using straight-line depreciation, with a useful life of 20 years, no residual value, and an expected total net income of $20,820,000 over the 20 years is (round to two decimal points) 1.50% Ob. 60.00% . 30.00% Od. 15.0096 The expected average rate of return for a proposed investment of $538,800 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total net income of $240,240 for the 4 years is (round to two decimal points) . 0.89% Ob. 22.2990 . 11.15% 04 0.45% The cost of goods sold during the year was $57,997. Merchandise inventories were $12,928 and $8,627 at the beginning and end of the year, respectively. Accounts payable (all owed to merchandise suppliers) were $5,685 and $3,946 at the beginning and end of the year, respectively. Using the direct method of reporting cash flows from operating activities, find the total cash payments for merchandise. Select the correct answer. O$5,685 $57,997 $51,957 O$55,435