I might be able to help but a picture of the problem or the equation might work too
Fixing two of the bits leaves four remaining positions, each with two possibilities (0 or 1), so there are

possible strings.
The answer is 553 general admission tickets sold and 295 VIP tickets sold
Since this is due in 10 minutes, I didn’t give a step by step explaination, but if you need one, just comment on this.