Answer:
The answers are 12/30 and 10%
Explanation:
It's 40% because the ratio of males to total students is 12 to 30, or 12:30, which is equal to 12/30.
The other answer is 10% because the ratio of males to total students is 3 to 30, or 3:30, which is equal to 1/10. Then you would do 100 divided by 10 which would give you 10 so it's 10%.
Hope this helps!