Question: The closest distance between Earth and Mars is approximately 3.39* 10^{7} miles. The fastest rocket leaving Earth travels at an average speed of approximately 3.6 *10^{4} miles per hour. At that rate, which expression could be used to determine the approximate number of hours it would take the rocket to travel that distance?
A) (3.39 *10^{7}) - (3.6 *10^{4})
B) (3.6 *10^{4}) - (3.39 10^{7})
C) (3.39* 10^{7}) (3.6 *10^{4})
D) (3.6 *10^{4}) (3.398 10^{7})
Correct answer: C
Grade: 8 | Topic: Expressions and Equations | Difficulty: Easy | Standard: 8.EE.A.4