Chase worked in a lab helping pack material that was labeled to weigh 15 ounces. When one of his boxes pulled weighed it was 14.5 ounces. What was the percent error to the nearest tenth?​

What is the quadric regression equation that fits these data

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

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?