I need help tried to solve it, but can't....
Consider the information about the number of athletes that select various after- practice drinks at a school one day.

30 athletes select water
21 athletes select lemonade
14 athletes select some other drink

Part A
If there are a total of 800 athletes in the school, what is the best approximation for how many athletes in the school select water after practice?
A 320 athletes
B 400 athletes
C 695 athletes
D 765 athletes


Part B
Based on the data what is the approximate probability that the next athlete to select an after-practice drink selects lemonade?

A 6/35
B 1/5
C 3/10
D 1/2