Upper west side yoga is a yoga studio that has been around over 30 years . The studio offers several programs for participan nts between 6 and 80 years of age : monthly payments , weekly payments , and daily payments . Each of these payments allows them to take group classes . Additionally , students may purchase private lessons . The prices of these private lessons vary depending on whether the lessons are provided by senior or junior instructors . Students typically pay at the time of purchase , but some students pay within two weeks of purchase . While all employees are also instructors , only a few handle sales and accep payments Required Find the agents , events and resources ( 25 points ) Draw a diagram with relationships and cardinalities ( 1. 5 points ) Create the tables needed to collect the information needed in the process ( indicate primary keys , foreign keys , and 3 attribute pertable ) ( 1 . 5 points )