Answer:
210 students have brown eyes
Explanation:
There are 350 students in total. We know that only 3/5 of them have brown eyes. The question asks for how many students have brown eyes.
Since we know that 3/5 can be represented as a percentage (60%), we can multiply the total number by 60%. Our equation is basically saying, give us 60% of 350.

There are 210 students with brown eyes.