2,100 light years = 6.51808059 × 1019 feet
thosand feet long took 100 years is a tradition
2340 light years = 7.26316*1019 feet
A mile is 5,280 feet, so 52.8 x 100 (feet), or 52.8 hundred feet. Or fifty two hundred eighty feet.
179 what? Millimetres? Miles? Light years?
The light produced by fireflies is bright enough that you can see them from at least a hundred if not more than two hundred feet away. However, they don't make enough light to brighten a room or come close to comparing with a light bulb. Also, they can only make short spurts of light at a time.
two hundred feet = 66.6666667 yards
24x36 what? Microns, light years, etc
206 light years = 3.1039 * 1016 feet
A hundred feet of what?
5.5 what? Miles? metres? kilometres? light years?
The question is incomplete. 3.5 what? Miles? Feet? Light years?
It is not possible to answer the question without information on the units used for 7 x 20. Are they inches, feet, miles, light years or combinations of these eg 7 inch * 20 light years.