parts a and b please

-3/457023/quizzes/securedilockdown The Westin Hotel's guest-days of occupancy and custodial supplies expense over the last seven months were: Guest-Days Custodial Month of Occupancy Supplies Expense March 8,500 $12,300 April 8,000 $12,000 May 10,500 $13,500 June 12,000 $14,400 July 14,000 $15,600 August 13,000 $15.000 September 10,500 $13,500 Guest-days is a measure of the overall activity at the hotel. For example, a guest who stays at the hotel for three days is counted as three guest-days. Required: Using the high-low method, estimate a cost formula for custodial supplies expense indicating total fixed costs and variable cost per guest-day. Compute the total amount of custodial supplies expense you would expect to be incurred at an occupancy level of 12.400 guest-days. OU MUST SHOW YOUR WORK TO EARN CREDIT