Please help. I need help with 3 questions! -3-||

1. Reese bought 3 tickets for $75. At this rate, how much did she pay per ticket?

2. A china shop receives a shipment of 140 dishes in 5 boxes. At this rate, how many dishes will it receive per box?

3. There are 210 students in the 10 classes of East Middle School. At this rate, how many students are in each class?