Answer:
84 tickets
Explanation:
So first off lets add the tickets we sold to the tickets we have left. Lets x equal the amount of tickets we started with before selling.
25+17=x
Add them up.
42=x
We started with 42 tickets. To find how many tickets we had before spiting the tickets. We need to multiply our tickets by 2 since we had half. Let y be this number
42*2=y
Multiply them up
84=y
We started with 84 tickets.