Which of the following equations has a slope of -2 and a root at 5? y=−2x+5y is equal to negative 2 x plus 5

y=5x−2y is equal to 5 x minus 2

y=−2x+10y is equal to negative 2 x plus 10

y=10x−2y is equal to 10 x minus 2

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?