P 1. 1. 10.15%

P 2. 1. $99,672

P 3. 1. Positive net present value: $35,540

P 4. 1. Hawk Machine: 13.4%; 2. Cal Machine: 5.5 years

P 5. 1.a. Negative net present value: ($26,895)

P 6. 1. $92,536.50

P 7. 2. Negative net present value: ($7,080)

P 8. 1. Exalt Machine: ($32,379); 2. Exalt Machine: 20.7%; 3. Exalt Machine: 5.4 years