please answer all requirements!!

Data table NovemberDecember$$5,2304,751515282$$8,5908,59010398$$21,28036,7845,6009,680 Sullivan Corporation wants to find an equation to estimate some of their monthily operating costs for the operating budget for 2018 . The following cost and ointr lata were gathered for 2017 (Click the icon to view the cost and other data) Read the requirements Requirements 1. Which of the preceding costs is variable? Foxed? Mixed? Explain 2. Using the high-low method, determine the cost function for each cost. 3. Combine the preceding information to get a monthly operating cost function for the Sullivan Corporation. 4. Next month, Sullivan expects to use 330 machine hours, have 65 employees, and ship 9.900 units. Estimate the total operating cost for the month Maintenance y=a+bx Health insurance y=a Shipping costs y=bx Now determine the cost function for each cost (Enter all values in the same format as the general linear formula. If a box is not used in the equation, leav the box empty, do not enter a zero or select a label.) Cost function Maintenance y= Health insurance y= Shipping costs y=