The answer is 2500. Hope you get an A+ on whatever you're working on :)
I think I would buy the 3 oz bag for 1.00
The ratio of games lost to won would be 6 to 9, or 6:9. This could be simplified by dividing both by dividing both sides by three, giving you 2 to 3 or 2:3
Have you tried doing 6 in x 4 in, if not try that