Lotus Engineering is considering including two pieces of equipment, a truck and an overhead pulley system, in this years capital budget. The projects are independent. The firms cost of capital is 12%. The after tax cash flows, including depreciation, for the truck and the pulley are as follows

year	0	1	2	3	4	5	6	7
Truck	-50000	10000	10000	10000	10000	10000	10000	10000
Pulley	-70000	15000	15000	15000	15000	15000	15000	15000

(Keep your answer to only two decimals) a. What is the payback period for the truck ? (example of answer format: 15.42 years, or 15 .42) b. What is the payback period for the pulley ? (example of answer format: 15.42 years or 15.42) c. What is NPV for the truck ? (example of answer format: $1,000.00 or -$1,000.00) d. What is NPV for the pulley ? (example of answer format: $1,000.00 or -$1,000.00 )