Can anyone explain to me on how to do this im still trying to understand ​

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.

Plzzz answer both questions and i will give you 100 points