3. Using the variable rate and fixed cost, what is the co-formula for tanning services? 4. Calculate the total predicted cost of tanning services for September for 2,600 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. Total predicted cost for September $ Total fixed cost for September Total predicted variable cost for September $ 5. Which of the following statements is correct when luisa uses the high-low method to estimate the costs? Low point In your calculations, round per unit costs to the nearest cent. 2. Using the high-low method, compute the variable rate for tanning. 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