given this information how do I find b?

Question 1 of 1 2.86710 E Mark Harris operates a kiosk in downtown Chicago, at which he sells one style of baseball hot. He buys the bats from a supplier for $20 and sells them for $25. Mark's current breakeven point is 16.600 hats per year, al) Your answer is correct. Calculate contribution margin per unit $ Contribution margin per un Textbook and Media Alem 20/12 used (2) FO Question 1 of 1 2.86/10 (a2) Your answer is correct. What is Mark's current level of fixed costs? (Use the rounded contribution margin per unit calculated in the previous part) 33.000 Current level of fixed costs e Textbook and Media Attempts: 1 of 12 used (b) 4.80 / 10 = (b) X Your answer is incorrect Assume that Mark's foxed costs, variable costs, and sales price were the same last year, when he made $30.800 in net income. How many hats did Mark sellast year, assuming a 30% income tax rate? (Use the rounded contribution margin per un calculated in the previous part) 22760 hats Assistance Used e Textbook and Media Textbook 1 Textbook 2 Attempts of 12 used w Savetor Later A9