interest and training level. The cost of the fitness trainers is $1,200 per month and $10 per class taught. Last month, 100 classes were taught. Required: 1. Develop a cost equation for total cost of labor. Totallaborcost=$+perclasstaught 2. What was total variable labor cost last month? 3. What was total labor cost last month? $ 4. What was the unit cost of labor (per class) for last month? $perclass 5. What if Callie increased the number of classes offered by 50 percent? a. What would be the total labor cost? $ b. The unit labor cost? If required, round your answer to the nearest cent. $perclass c. Why did the unit labor cost decrease