Please help give all steps to show how you arrived to the final answer for each of the 2 problems listed below.
1.) Voice Genesis Inc. employs the units of production method of depreciation. Electronic equipment costing $67000 has 9000 hours of operation and an estimated scrap value of $2500. It operated hours the first year. Compute the depreciation expense for the first year.
2.) Zucker Global Products, Inc. has net sales of $350000; net income of $45000; total assets of $875000; and total liabilities of $625000. Compute the rate of return on investment. Express your answer as a percentage. (Compute answer accurate to two decimal places.)