n/takeAssignment/takeAssignmentMain.do?invoker=&takeAssignmentSessionLocator=&inprogress=false Update The expected average rate of return for a proposed investment of $4,870,000 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 $14,610,000 over the 20 years is (round to two decimal points). Oa. 60.00% Ob. 15.00% Oc. 1.50% Od. 30.00%