The large sphere has a diameter of 12 feet. What is the volume of the shaded figure? Express the answer in terms of π.

252π ft3

261π ft3

288π ft3

324π ft3

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.