7.4 Construct the required CFD and calculate life-cycle cost (LCC) at an interest rate of 7% per year for a proposed project, where cost categories (in millions) for the 20-year life cycle are indicated in the following table:

Cost in Each Year(s) in ($ Millions)
Cost Category	0	1	2	3	4	5	6 thru 10	11 thru 17	18 thru 20
Research & Development	$ 5.50	$ 3.50	$ 2.50	$ 0.50
Proof of Concept	$ 1.10
Prototype Development				$ 5.20
Design for Manufacturing					$10.50
Initial Production						$ 10.50
Recurring Production Costs				$ 1.30	$ 3.10	$ 4.20	$ 6.50	$ 2.20
Maintenance Costs				$ 0.60	$ 1.40	$ 1.60	$ 2.70	$ 3.50
Equipment Costs				$ 1.50	$ 3.60	$ 5.30	$ 7.80	$ 8.50
Disposal									$