For each possible combination digit, there are 10 options: 0-9. Multiply ten by itself five times (for five digits) to find the number of combinations. This gives you 100,000 possible combinations.
In this case u need to divide 10 1/2 by 14 coz theres 14 ones in 14 so 10 1/2 divided by 14 = 0.75 <em>so theres 0.75 sugar in one ounce of drink ;)</em>