1. astronomers measure large distances in light-years. one light year is the distance that light can travel in one year, or approximately 5.88 x 10^12 miles. suppose a star is 9.8 x 10^1 light years from earth. in scientific notation, approximately how many miles is it? a. 5.88 x 10^13 miles b. 5.76 x 10^14 miles c. 5.88 x 10^12 miles d. 9.8 x 10^12 miles 2. a 1,600.00 principal earns 7% annual interest, compounded semiannually (twice per year). after 33 years, what is the balance in the account? a. $4,979.11 b. $14,920.54 c. $112,992.00 d. $15,494.70