Final answer:
The breakeven sales in units can be calculated by dividing the fixed expenses by the unit contribution margin.
Step-by-step explanation:
The breakeven sales in units can be calculated using the formula:
Break-even Sales (in units) = Fixed Expenses / Unit Contribution Margin
Given that the unit contribution margin is $5 and the total fixed expenses are $17,500, we can substitute these values into the formula:
Break-even Sales (in units) = $17,500 / $5 = 3,500 units
Therefore, the breakeven sales in units is 3,500 units, option (a).