Ahiker in death valley begins the climb out of the valley from 150 feet below sea level. 5 minutes later the hiker is at 87.5 feet below sea level.
answer the questions above, .

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.