Calculation of Breakeven point in sales

The following monthly data are available for Win, which produces only one product that it sells for $96 each. Its unit variable costs are $ 48and its total fixed expenses are $72,720. Sales during April totaled 1,600 units.

(a) What is the breakeven point in sales dollars for Win?
(b) How many units must Win sell in order to earn a profit of $24,000?
this cost?