Answer:
Win-loss ratio: 2 : 3
Step-by-step explanation:
A win-loss ratio is how many wins compared to how many losses. This means that they had 12 out of 30 wins so they had 18 losses. This means they had a 12 : 18 win-loss ratio, BUT, when simplified, it becomes 2 : 3. Therefore, the answer is 2 : 3.
