Solve the Problem

Solve the problem. Round your answer to 2 decimal places when necessary.
-In a recent year, there were 636 deaths in general aviation over 8.6 billion miles flown. Find the fatality rate in units of deaths per 1 billion miles flown.

A) 0.01 deaths per billion miles flown
B) 73.95 deaths per billion miles flown
C) 546.96 deaths per billion miles flown
D) 7.4 deaths per billion miles flown