the speed of light is 1.863 x 10^5 miles per second.
assume 1 year is 365 days. write an expression to convert speed of light from miles per second to miles per year
make a table that shows the distance light travels in 1, 10, 100, 1000, 10000, 100000 years. our galazy has a diameter of about 5.875 x 10^17 miles. based on the tablem about how long would it take for light to travel across our galaxy.
i have no idea what to do. help