Part 1: pizza is served in the school cafeteria every fourth school day. tacos are served every third school day. both pizzas and tacos are served today. in how many school days will pizza and tacos be served on the same day again? part 2: if the pattern continues, will pizza and tacos be served on the same day in 21 school days? explain why or why not.

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.