The track team has a goal of running at least 21 miles per week during practice. The team meets for practice 4 days a week. Write and solve an inequality to show how many miles per practice they must run. Graph the solution. Please answer!

Without any equipment, you can see stars that are 2{,}800{,}0002,800,0002, comma, 800, comma, 000 light-years away. by looking through a small telescope, you can see stars that are 3{,}112{,}000{,}0003,112,000,0003, comma, 112, comma, 000, comma, 000 light-years away. approximately how many times as far can you see using a small telescope as without any equipment?