Sam bought a new fertilizer spreader for his yard. it has a dial on the handle that adjusts the flow of fertilizer. the dial setting is from 0 to 10. he has learned that if he sets the dial to 10, then one bag of fertilizer will cover only 600 square feet of his yard. the setting varies inversely with the area it will cover. how many square feet should one bag cover if the dial is set at 6?

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.