A gym has 563 people that want to attend workout classes. Each class will have 15 people. Which is the best estimate for the number of workout classes the gym should offer?
25
35
40
50

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.