PLEASE HELP !

The Lakeshore Hotel's occupancy days and custodial supplies expense over the last seven months were as follows: Month March April May June July August September Occupancy-Days 8,700 8,900 13,000 20,500 27,300 19,000 15,600 Custodial Supplies Expense $ 14,680 14,760 16,700 19,400 22,120 17,450 I 16,790 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.) X 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 14,200 occupancy-days? Variable cost Fixed cost Total cost