-15a - 9c -6 should be right :)
100 can go into 750 7.5 times :)
A is correct:
Let volume v, length l, and h height.
v= (l²h)/3
v=(x²9)/3
v=3x²
You most likely will win a token. you have the advantage as the most they can win is 1 token if you lose, but you can win 3 tokens.
The answer to your question is 74/99:D
