Answer:
Trenton has 9 friends
Explanation:
Lets label the amount of friends Trenton has as f
1) Set up an equation using the variable we just made:
f(1/3)=3
2) Multiply both sides of the equation by the reciprocal of 1/3 (3/1):
f=9
9 Multiplied by 1/3 equals 3, which means we were correct!