93 million miles = 9.3x10⁷ miles
186,000 miles/sec = 1.86x10⁵ miles/sec
9.3x10⁷ miles x 1 sec/1.86x10⁵ miles = 5x10² seconds = 500 seconds
Converting to minutes:
500 seconds x 1 minute/60 seconds = 8.33 minutes for light to reach earth (this is equal to 8 minutes 20 seconds)
