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3. Using the variable rate and fixed cost, what is the cost formula for tanning services? 4. Calculate the total predicted cost of tanning services for September for 2,400 appointments using the formula found in Requirement 3 . Of that total cost, how much is the total fixed cost for September? How much is the total predicted variable cost for September? If required, round the final answers to the nearest dollar. 5. Calculate the total predicted cost of tanning services for September for 3,930 appointments. If required, round the final answers to the nearest dollar. $ While the total cost prediction is greater than the prediction from Requirement 4, Sophia should be concerned that the number of tanning appointments of 3,930 in this calculation is. than the highest number of tanning appointments (3,600) contained in the 8 months of data upon which the high-low method constructed the cost function. 6. Which of the following statements is correct when Sophia uses the high-low method to estimate the costs? In your calculations, round per unit costs to the nearest cent. 2. Using the high-low method, compute the variable rate for tanning. Next, compute the fixed cost per month. Round the variable rate per tanning appointment to the nearest cent and use it in your further calculations. Round the fixed cost per month to the nearest dollar and use it in your further calculations. Variable rate for tanning $ per tanning appointment Fixed cost per month \$ 3. Using the variable rate and fixed cost, what is the cost formula for tanning services? 4. Calculate the total predicted cost of tanning services for September for 2,400 appointments using the formula found in Requirement 3 . Of that total cost, how much is the total fixed cost for September? How much is the total predicted variable cost for September? If required, round the final answers to the nearest dollar. 5. Calculate the total predicted cost of tanning services for September for 3,930 appointments. If required, round the final answers to the nearest dollar. $ While the total cost prediction is appointments of 3,930 in this calculation is. which the high-low method constructed the cost function. greater than the prediction from Requirement 4, Sophia should be concerned that the number of tanning than the highest number of tanning appointments (3,600) contained in the 8 months of data upon Sophia operates a full service day spa in a small college town. Recently, Sophia rented space next to her spa and opened a spray tanning salon. She anticipated that the costs for the spray tanning service would primarily be fixed, but found that tanning salon costs increased with the number of appointments. Costs for this service over the past 8 months are as follows: Required: 1. Which month represents the high point? The low point? High point Low point

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