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Question 4 Data concerning Engel Company's activity for the first three months are shown below. Month Machine Hours Repair Cost January February March 4,000 4,800 3,600 $3,100 $3,500 $2,900 Using the high-low method of analysis, determine the estimated variable cost per machine hour and the total fixed cost. (Round answer to 2 decimal places, e.g. 52.75.) Variable Cost Per Machine Hour 0.50 Total Fixed Cost 1100.00 Question 8 Donnie's Donut Shop sells cream-filled muffins for $1 each. Donnie's variable cost per muffin is $0.30 and total fixed costs are $2,000 per month. If Donnie wants to earn a monthly operating income of $5,000, how many muffins must he sell during the month? O 10,000 0 7,000 0 23,333 0 2,857 Click if you would like to Show Work for this question: Open Show Work