The mean is 12
explanation: you add all of the numbers and then divide it by the amount of number u have
Answer:

Step-by-step explanation:

Use point slope form or slope int to create an equation that meets the requirements

point slope form

slope int form
Answer:
27 attendees
Step-by-step explanation:
First, we can find the cost per attendee.
78÷26
3
So $3 per attendee.
Then divide 81 by 3 to find the number of possible attendees.
81÷3=27
I hope this helps!