Supply costs at Coulthard Corporation's chain of gyms are listed below: Client-Visits Supply Cost March 11,663 $ 28,362 April 11,459 $ 28,303 May 11,991 $ 28,457 June 13,600 $ 28,924 July 11,723 $ 28,380 August 11,209 $ 28,231 September 12,003 $ 28,461 October 11,694 $ 28,371 November 11,842 $ 28,414 Management believes that supply cost is a mixed cost that depends on client-visits. Use the high-low method to estimate the variable and fixed components of this cost. Compute the variable component first, rounding off to the nearest whole cent. Then compute the fixed component, rounding off to the nearest whole dollar. Those estimates are closest to: (Round your intermediate calculations to 2 decimal places.)

Ardmore farm and seed has an inventory dilemma. they have been selling a brand of very popular insect spray for the past year. they have never really analyzed the costs incurred from ordering and holding the inventory and currently fave a large stock of the insecticide in the warehouse. they estimate that it costs $25 to place an order, and it costs $0.25 per gallon to hold the spray. the annual requirements total 80,000 gallons for a 365 day year. a. assuming that 10,000 gallons are ordered each time an order is placed, estimate the annual inventory costs. b. calculate the eoq. c. given the eoq calculated in part b., how many orders should be placed and what is the average inventory balance? d. if it takes seven days to receive an order from suppliers, at what inventory level should ardmore place another order?