The following data are accumulated by Lone Peak Inc. in evaluating two competing capital investment proposals: 3D Printer Amount of in investment: $40,000, Useful life: 7years, estimated residual value: $3,000, estimated total income over the useful life: $24,080. Truck: $50,000, 10 years, $6,000, $36,400 1.) What is the average annual income for 3D printer? 2.) What is the average annual income for truck? 3.) What is the average investment for 3D printer? 4.) What is the average investment for truck? 5.) What is the average rate of return for 3D printer? 6.) What is the average rate of return for truck