The accompanying table describes the relationship between the number of workers hired by a call center each hour and the number of calls the call center can make each hour. The call center has only 1 telephone. The telephone costs the firm $5/hour (regardless of how many calls are made), and each worker is paid $10 per hour.
What is the total cost of making 6 calls an hour?

Question

The accompanying table describes the relationship between the number of workers hired by a call center each hour and the number of calls the call center can make each hour. The call center has only 1 telephone. The telephone costs the firm $5/hour (regardless of how many calls are made), and each worker is paid $10 per hour.   
What is the total cost of making 6 calls an hour?

Quizplus · Accepted Answer

To make 6 calls an hour requires 1 telephone and 6 workers. The cost of the telephone is $5, and the cost of hiring 6 workers is $60, so the total cost is $65.

The Accompanying Table Describes the Relationship Between the Number of Workers