Amy drove to a friend’s house at a rate of 45 mph. She returned by the same route at a rate of 50 mph. The driving time for the round trip was 4 hours. What is the total distance Amy
traveled?

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?