Can you please check my work?

The assignment is:

Assume variable costs of $13.73 to bake three dozen cookies, fixed costs of $30. It takes one hour to bake two dozen cookies, labor costs are $10/hour.

• Calculate the average total cost, average variable cost, average fixed cost, and marginal cost for baking one dozen, two dozen, three dozen, four dozen, five dozen, six dozen, seven dozen, eight dozen, nine dozen, and ten dozen cookies. Show your work for the calculations and a table with just cost numbers.
• Graph each of the cost numbers. Graph them on the same graph.

My work:

Measures of Cost for Baking Cookies Output (dozens of TFC (Oven TVC TC AFC AVC ATC MC cookies) Rental) 30 $ 18.73 $ 48.73 $ 30.00 $ 18.73 5 48.73 $ 5.00 30 5 23.73 $ 53.73 $ 15.00 $ 11.87 5 26.87 $ 5.00 30 5 28.73 5 58.73 $ 10.00 5 9.58 $ 19.58 $ 18.73 30 $ 47.46 $ 77.46 5 7.50 5 11.87 5 19.37 $ 5.00 30 $ 52.46 5 82.46 5 6.00 $ 10.49 $ 16.49 $ 5.00 30 $ 57.46 $ 87.46 $ 5.00 $ 9.58 $ 14.58 $ 18.73 30 5 76.19 $106.19 $ 4.29 $ 10.88 $ 15.17 $ 5.00 30 5 81.19 $111.19 $ 3.75 $ 10.15 $ 13.90 $ 5.00 30 5 86.19 $116.19 $ 3.33 $ 9.58 $ 12.91 $ 18.73 10 30 $104.92 $134.92 $ 3.00 $ 10.49 5 13.49 $ 5.00Cost Curves For Baking Dozens Of Cookies - $30 Oven Rental $60.00 $50.00 $40.00 $30.00 $20100 $10.00 5- 1 2 3 4 5 6 7 9 10 Dozens of Cookies Average Fixed Cost Average Variable Cost Average Total Cost . Marginal Cost