Amath field day competition is held in a room with many tables, and there are 6 stools at each table. each stool has 3 legs, and each table has 4 legs. if there is a total of 484 legs on all the tables and stools in the room, how many tables are in the room? you

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.