Adam Granger operates a kiosk in downtown Chicago, at which he sells one style of baseball hat. He buys the hats from a supplier for $14 and sells them for $20. Adam's current breakeven point is 15,000 hats per year. Assume that Adam's fixed costs, variable costs, and sales price were the same last year, when he made $21,000 in net income How many hats did Adam sell last year, assuming a 30% income tax rate? (Use the rounded contribution margin per unit calculated in the previous part.) 20000 hats e Textbook and Media Attempts: unlimited (c) Your answer is incorrect. What was Adam's margin of safety in units and dollars last year? hats Margin of safety in units Masinan dollars