Tomas realized that the tip of the second hand on the clock rotated about the center of the clock. he watched the second hand rotate around the center of the clock for 15 seconds. which describes the rotation he observed?

Ineed the solution to this problem and the steps.

Solve one step and two step problems

The bottom of ignacio's desktop is 74.5cm from the floor. ignacio's 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