To find the price per attendee, we can use the cost data for different numbers of attendees from the table.
- First, we need to determine the fixed cost (the cost when there are 0 attendees). This is $250.
- Next, we can calculate the cost for each additional attendee.
Let's take the data for the two points in the table:
- When there are 20 attendees, the cost is $480.
- When there are 0 attendees, the cost is $250.
Now, we can find the additional cost for those 20 attendees: \[ \text{Additional Cost} = \text{Cost with 20 attendees} - \text{Fixed Cost} \] \[ \text{Additional Cost} = 480 - 250 = 230 \]
Now we divide the additional cost by the number of additional attendees to find the cost per attendee: \[ \text{Cost per Attendee} = \frac{\text{Additional Cost}}{\text{Number of Attendees}} = \frac{230}{20} = 11.50 \]
Thus, the price per attendee is $11.50.
So the correct response is: $11.50