The Lakeshore Hotel's occupancy-days and custodial supplies expense over the last seven months were as follows: Month OccupancyDays Custodial Supplies Expense

March	18,000	$22,500
April	12,500	20,850
May	15,000	20,250
June	28,500	28,850
July	24,000	27,100
August	19,000	22,750
September	14,500	20,750

Occupancy-days are a measure of the overall activity at the hotel. For example, when a guest stays at the hotel for three days, it is counted as three occupancy days. Required:

1. Using the high-low method, estimate a cost formula for custodial supplies expense. (Round the "Variable cost" to 2 decimal places.)

2. Using the cost formula you derived above, what amount of custodial supplies expense would you expect to be incurred at an occupancy level of 13,000 occupancy-days? (Do not round intermediate calculations.)

	Amount
Variable Cost
Fixed Cost
Total Cost