how would I solve b?

Thomas Taylor operates a kiosk in downtown Chicago, at which he sells one style of basebali hat. He buys the hats from a supplier for $20 and sells them for $25. Thomas's current breakeven point is 15,600 hats per year. (a1) Calculate contribution margin per unit. Contribution marginper unit Your answer is correct. What is Thomas's current level of fixed costs? (Use the rounded contribution margin per unit calculated in the previous part.) Current level of fixed costs eTextbook and Media Assistance U: Assume that Thomas's fixed costs, variable costs, and sales price were the same last year, when he made $28,000 in net income. How many hats did Thomas sell last year, assuming a 30% income tax rate? (Use the rounded contribution margin per unit calculated in the previous part.) hats