Answer:
A. To find the weekly cost for the company for each worker, you can calculate the unit rate (cost per worker) using the provided points (7,5250) and (12,9000).
The unit rate is calculated as follows:
Unit Rate = Total Cost / Number of Workers
For the first point (7,5250):
Unit Rate = $5250 / 7 = $750 per worker
For the second point (12,9000):
Unit Rate = $9000 / 12 = $750 per worker
So, the weekly cost for the company for each worker is $750.
B. A unit rate is used to describe the cost, quantity, or rate of change of one item or unit with respect to another. In this context, it is used to determine the cost for each worker per week. Unit rates are often expressed in the form of "cost per unit" or "rate per unit." They allow for easy comparison and calculation of the cost or rate for different quantities or units. In this case, the unit rate of $750 per worker means that the company spends $750 for each additional worker per week.
Explanation: