Blake can cover 1360 miles in 5 hours in his plane flying with the wind. Flying against the wind he can only cover 1040 miles. Find the speed of Blake's plane in still air and the speed of the wind.

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.