Lazar Corporation is evaluating a proposal to invest in a machine costing $89,000. The machine has an estimated useful life of ten years, and an estimated salvage value of $14,000. The machine will increase the company's net income by approximately $9,600 per year. All revenue and expenses other than depreciation will be received and pain in cash.

The payback period of the machine is approximately: a) 4 years b) 8 years c) 5 years d) 10years

The expected rate of return on average investment of the machine is: a)10% b)17% c)18.6% d) 48%