David counts the quarters in his change jar. he has 24 more quarters than his brother rob. if r is the number of quarters rob has, which expression represent the number of quarters and david and rob have it all

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.