Not sure how to do this

Easy Electronics produces an easy-to-use high-end compact disc player that sells for $1, 900. Total operating expenses for the past 12 months are as follows: 1. Using the high-low method, create a total cost formula for the production of the compact disc player. 2. Using the cost formula created from requirement 1, what would next month's predicted cost be if 183 units are produced? 3. Using Excel, run a regression analysis on the data above. Print your results and turn it in with the rest of your work. 4. Create a cost formula using the results from your regression analysis (round out to 4 decimals places when creating your formula). Using this new cost formula, what would next month's predicted cost be if 183 units are produced? 5. What is R squared based on your results? Do you think that units produced is a good indicator of total cost