this is what I have so far, I am not quite sure how to go about it for b)

pay, and the number of employees in each cate- y for the machining department of a company BLO The basic pay categories, hourly rates of gory are shown below. Hourly Pay $30.45 Category Supervisors Machinists Assistants Helpers No. of Employees 2 6 6. 20.20 9 16.40 14.50 13 (a) What is the average rate of pay for all categories? (b) What is the average rate of pay per employee? TA T 16.40 Category Hourly pay No. of employees Supervisors $30.45 2 Machinists 20-20 Assistants 9 Helpers 14.50 13 a) What is the average rate of pay for all categories? 30.45 +20.30+16.40 +14.50 =$81.55 - 20.3875 2 4. or 820,39