A math student programmed a calculator to randomly generate a number from 11 to 20. If each number has the same probability of being generated, how many times would you expect to get a 14 in 50 random numbers

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.