The main span of the sunshine skyway bride is 360 meters long. the skyways main span is 30 meters shorter than the main span of the dames point bride. write and solve an equation to find the length of l of the main span of the dames point bridge.

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.