The expected average rate of return for a proposed investment of $6,810,000 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 $20,430,000 over the 20 years is (round to two decimal points). a. 1.50% b. 30.00% OC 15.00% 0.60.00%