Final answer:
The bicycle store must sell 40 bicycles each month to break even. This amounts to covering $2400 in fixed costs plus $60 per bicycle in variable costs with $120 revenue per bicycle sold.
Step-by-step explanation:
To calculate the break-even point for the bicycle store, we need to find the point where total costs equal total revenues. The fixed costs are $2400 per month, and variable costs are $60 per bicycle. The selling price per bicycle is $120. The break-even point occurs when the cost of operating the store plus the cost of the bicycles sold equals the revenue from selling bicycles.
The cost function is: C(x) = 2400 + 60x, where x is the number of bicycles sold. The revenue function is: R(x) = 120x. To find the break-even point, we set the cost equal to the revenue:
- 2400 + 60x = 120x
- 120x - 60x = 2400
- 60x = 2400
- x = 2400 / 60
- x = 40
Therefore, the store must sell 40 bicycles each month to break even. So, the correct answer is b) 40.