question 1) A call center has four categories of employees, each paid a particular wage. Managers are paid $30 an hour, clerks are paid $15 an hour, technicians are paid $20 an hour, and administrative assistants are paid $13 an hour. The call center has 3 managers, 18 clerks, 5 technicians, and 6 administrative assistants.

a. What is the simple arithmetic average of the hourly rates?

b. What is the weighted average of the hourly rates?

Question 2) Raymond worked 2 1/5, 2 1/3, 3 1/2, and 2 1/4 hours overtime during the last four days. Find the number of overtime hours she worked during the four days.

How many hours did Raymond work overtime?

Question 3) A waitress is paid $15.50 per hour. If her workweek is 37.50 hours, what is her monthly pay?