The indoor climbing gym is a popular field trip destination. This year the senior class at High School A and the senior class at High School B both planned trips there. The senior class at High
School A rented and filled I van and 5 buses with 121 students. High School B rented and filled
14 vans and 9 buses with 413 students. Each van and each bus carried the same number of
students. How many students can a van carry? How many students can a bus carry