Please show all work and equations.

1. Slippy Corp is a private company that manufactures lubricants and believes this is a good time to go public. Last year EBIT was $424 million, D&A was $107 million, CapEx was $133 million, and the increase in net working capital was $21 million. If Slippys tax rate is 30%, what was its Free Cash Flow?
2. Slippys capital structure today is $930 million in Long Term Debt and $1,262 million in Common Equity. If its debt were issued today, Sticky would pay an interest rate of 5.1%/year (before tax). Slippys Cost of Equity is estimated to be 10%/year. Given a tax rate of 30%, what is Slippys Weighted Average Cost of Capital (WACC)? (Your answer should be a % carried to 2 places.)
3. The plant manager of Shredder Corp is considering a new shredder for one of its plants. The new machine costs $35,850 making it eligible for the companys 3-year payback rule. The new machine is expected to produce incremental after-tax profits of $13,250/year. A) What is the payback period? (Carry your answer to 1 place.) And B) Should Shredder Corp buy the new shredder?
4. Get Fit Corp is analyzing an expansion into Canada where management expects a high return but with higher risk than its existing territory in the mid-Atlantic states of the US. In calculating the NPV of this investment, what adjustment should Get Fit make to the discount rate used to calculate NPV?