Simplify the expression. Write the answer using scientific notation. Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5,880,000,000,000 miles. Suppose a star is 13.6 light-years from Earth. In scientific notation, how many miles away is it? 1.36 x 1012 miles 7.9968 x 1013 miles 5.88 x 1012 miles 5.88 x 1013 miles
