Venus travels around the sun at a speed of approximately 21.9 miles per second. The approximate speed is how many miles per hour?  Choose the most appropriate option
A) 64,420  B) 78,840  C) 83,160  D) 88,970  E) 94,320
21.9 * 3600 = 78,840   The answer is 78,840.
<result>B</result>
Venus travels around the sun at a speed of approximately 21.9 miles per second. The approximate speed is how many miles per hour?