1.at a video arcade , jenny buys 25 tokens. she uses two tokens for each game she plays. a ) write an expression for the number of tokens jenny left after playing g games. b) find the number of tokens jenny has left after playing 1,4,6,10 and 12 games.

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?