Two things: first, who invented the calculator? second, just wanted to let everyone know that i'm online. can with a wide variety of things, but when it comes to math, i can only with algebra 1 and simple geometry and below (pre algebra, 7th grade math, 6th grade math, 5th grade math, etc.) i'm also great most other subjects

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?