Answer:
The break-even point for this bookstore is 20 units
Step-by-step explanation:
We know that break even point is given by the following formula,

Here, we are given that bookstore costs $120 per day to keep open so fixed cost = 120$
Price per unit = price of each book =20$ and
variable cost = $14
Substituting these in the formula, we get

=
= 20
20 units which is the The break-even point for this bookstore.