There are a total of four freshmen five sophomores and 16 juniors in eric's math class he made a circle graph representing the number of freshmen, sophomores and juniors in the class what should be the measure for the central angle of the sector representing the number of sophomores in eric's math class

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?