Amonthly service fee to download e-books is $4.95, plus $3.99 per book downloaded. write an equation that represents the total cost, c, in a month when b books are downloaded. explain how your equation represents the problem.

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?