Answer:
B. 7.94  × 10^8 miles
Step-by-step explanation:
Given that
Earth is approximately 9.3 × 107 miles from the sun.
Saturn is approximately 8.87 × 108 miles from the sun.
We need to find out how much farther is saturn from the sun than earth is
So,
Earth - Sun = 9.3 × 10^7 miles
Saturn - Sun = 8.87 × 10^8 miles
Now Â
= 8.87  × 10^8 - 9.3  × 10^7
= 88.7  × 10^7 - 9.3  × 10^7 Â
= 79.4  × 10^7
= 7.94  × 10 ^8
= 794,000,000 miles
Hence, saturn is  7.94  × 10^8 miles farther from Sun than Earth is