Suppose that rectangle ABCD is dilated to A'B'C'D' by a scale factor of 1/3 with a center dilation at the origin. what is the distance from the center of dilation to the midpoint of A'B'? A) 1 unit
B) 2 units
C) 3 units
D) 5 units

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.