IBM is planning to invest in a new data center. The initial investment required is $7,500,000. The data center is expected to generate the following annual savings:

Year	1	2	3	4	5	6	7	8	9	10
Savings ($)	1,000,000	1,050,000	1,100,000	1,150,000	1,200,000	1,250,000	1,300,000	1,350,000	1,400,000	1,450,000

The company's discount rate is 10%, and the data center has a useful life of 10 years with no salvage value. The tax rate is 28%.

Required:

1. Calculate the net present value (NPV) of the investment.
2. Compute the internal rate of return (IRR).
3. Determine the payback period for the investment.
4. Analyze the impact of the cost savings pattern on the project's cash flows.
5. Evaluate the effect of tax rate on the project's net savings.