Stanley bought a rectangular piece of land to build an amusement park. He is going to call his amusement park “Canada’s Stanley Land”. It will feature the world’s fastest rollercoaster with a drop of 90 degrees. The entire area of his land is 720 km2. The length of the land is 5 times the width of the land. It will cost Stanley $96,000,000,000 to build all the rides in his dream amusement park. What is the length and width of the piece of land that Stanley bought to build his amusement park?