Two college students are standing in a room of the room could fit around ten students in the room how many does it have when thirty walk in?

Amber had 1/6 of a pie left after the bake sale. rihanna had 3/8 of a pie left. what fraction of a pie did they have altogether?

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

How to solve a simultaneous equation involved with fractions?