You run a business out of your dorm selling WHBC testbooks in both paper and digital versions. The paper version costs you $180 and you can sell it for $360. The digital version costs you $40 and you can sell it for $120.

Last semester you sold 20 paper versions for $10,800 and 80 digital versions for $9,600. You expect that sales mix will continue this semester.

If your semester fixed costs are $6,000 for a publisher's license, what dollar amount of sales will you need to breakeven?

How many paper and digital books will you have to sell to breakeven(round up to whole books)?