Answer:

Step-by-step explanation:
Let
n -----> number of tickets
C ----> represent the cost of buy n tickets online
we have the ordered pairs
(1,16.50) and (2,30.50)
<em>Find out the slope of the linear equation</em>
The formula to calculate the slope between two points is equal to
substitute the values
<em>Find the equation of the line in slope intercept form</em>

we have

substitute



substitute

The domain of the function is all positive integers (whole numbers) including zero
{0,1,2,3,4,...}
8/15 or somthing like that it you might be souposed to solve it diferent than i did
Answer:
19 dollars
Step-by-step explanation:
To find out how much the cost was for each person, you take the total cost and divide by the number of people...
589/31
=19