There are 294 students in the senior class. four of the students will be chosen to be the president, vice-president, secretary, and treasurer of the class. how many different ways can this happen? there are different ways to choose the officers.

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.