Thuan plans to add a railing parallel to a flight of
stairs that goes down to the cellar in his house.
the stairs have the dimensions shown in the sketch
below.
landing
what will be the length of the railing from
point a to point b? show or explain how you got
your answer.

The bottom of ignacio's desktop is 74.5cm from the floor. ignacio's 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