Toe manager of Speedy Car Inspection reviewed the monthly operating costs for the past year. The costs ranged from $4,000 for 1.000 inspections to $3,600 for 600 inspections. Riead the Requirement 1. Use the hightlow method to calculate the variable cost per inspection Select the formula and enter the arnounts to calculate the variable cost per inspection. (Round to the nearest cent.) =Variablecostperinspection= Requirements 1. Use the highnow method to calculate the variable cost per inspection. 2. Calculate the total fixed costs. 3. Write the equation and calculate the operating costs for 800 inspections. 4. Draw a graph illustrating your total cost under this plan. Show the costs at 600,800 , and 1,000 inspections. (Use the high-low method for all calculations.) Requirement 2. Calculate the total fixed costs. Select the formula and enter the amounts to calculate the total fixed costs. (Use the highest volume and its mixed cost to calculate Requirement 3. Write the equation and calculate the operating costs for 800 inspections. Select the formula and enter the amounts to calculate the operating costs for 800 inspections. (Enter all amounts to the nearest cent.) Requirement 4. Draw a graph illustrating your total cost under this plan. Show the costs at 600,800, and 1,000 inspections. Plot the points for the costs at 600,800 , and 1,000 inspections, then plot the line for the total costs. (Enlarge the graph and use displayed below to draw the graph.)