Answer:
4 times
Step-by-step explanation:
We know that 6 hours is 360 minutes. If we know that the space shuttle orbits once every 90 minutes, we divide 360 minutes (Total amount of time) by 90 minutes (the time that it takes for the shuttle to orbit once), to find the amount of times it orbits in the 6 hour time frame.
360 divided by 90 is 4.
So the shuttle orbits earth 4 times in 6 hours.
