A bookstore costs $80 a day to keep open, and it spends $15 for each each book that it sells. If each book sells for $23, what is the break-even point for this bookstore?

the break-even point for this bookstore is 10 books.

Step-by-step explanation:

Let x represent the number of books that the bookshop buys and sells.

The bookstore costs $80 a day to keep open, and it spends $15 for each each book that it sells. It means that the total amount that the bookshop spends on x books is

80 + 15x

If each book sells for $23, it means that the revenue that the bookshop generates from selling x books is $23x.

At the point of break even, total cost equals revenue. Therefore,

23x = 80 + 15x

23x - 15x = 80

8x = 80

x = 80/8

x = 10