explanation on how and what the answer is.

4. If fixed costs are $1,000,000, the unit selling price is $65, and the unit variable costs are $45, what is the break-even sales (units) if fixed costs are increased by $240,000? a. 42,000 units b. 40,000 units c. 88,000 units d.*** 62,000 units info needed found on page