Mountain Dental Services is a specialized dental practice whose only service is filling cavities. Mountain has recorded the following for the past nine months:

Please help with the 2 I got wrong. Thanks

E5-5 Estimating Cost Behavior Using High-Low Method [LO 5-3] Mountain Dental Services is a specialized dental practice whose only service is filling cavities. Mountain has recorded the following for the past nine months: Month January February March April May June July August September Number of Cavities Filled 400 500 675 525 700 425 600 300 450 Total Cost $5,250 5,850 6,500 5,650 5,900 5,800 5,750 5,400 5,250 Required: 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled. (Round your answers to 2 decimal places.) & Answer is complete but not entirely correct. $ Fixed Cost Variable Cost per Unit 875 1.25 2. Using these estimates, calculate Mountain's total cost for filling 800 cavities. Answer is complete but not entirely correct. Estimated Total Cost $ 1,875