Please help me with this problem (test corrections)

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.

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.