Pelamed Pharmaceuticals has EBIT of $$312$ million in $2006.$ In$$ addition, Pelamed has interest expenses of $$129$ million and a corporate tax rate of $20\%.$

a$.$ What is$$ Pelamed's $2006$ net$$ income?

b$.$ What is the total of$$ Pelamed's $2006$ net income plus interest$$ payments?

c$.$ If Pelamed had no interest$$ expenses, what would its $2006$ net income$$ be$?$ How does it compare to your answer in part $($b$)?$

d$.$ What is the amount of$$ Pelamed's interest tax shield in$2006?$