A company that makes hair-care products had 4,000 people try a new shampoo. Of the 4,000 people, 12 had a mild allergic reaction. What percent of the people had a mild allergic reaction?
% of the people had a mild allergic reaction.
Mine an integer or a decimal.)

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?