The following are three independent situations.

The average cost per unit was $234 at a volume of 1,100 units and $204 at a volume of 1,300 units. The earnings were $22,100 at the lower volume. Estimate the variable cost per unit.

Variable cost per unit

$

Sarasota Car Wash Supplier sells a hose washer for $0.23 that it buys from the manufacturer for $0.12. Variable selling costs are $0.01 per hose washer. Breakeven is currently at a sales volume of $8,786 per month. What are the monthly fixed costs associated with the washer?

Fixed costs

$

Monthly fixed costs are $20,000 when volume is at or below 200 units and $28,800 when monthly volume is above 200 units. The variable cost per unit is $210, and the selling price is $290 per unit. What is the breakeven quantity?

Breakeven quantity

units