I need to convert thos problem "The average speed of a space shuttle is 725 meters per second to reach an altitude of 220 miles above the Earth. how long does it take the space shuttle? Express in minutes."

Well, you know the distance (220 miles) and you know the speed (725 m/s), so divide one by the other. BUT, you will need to convert to compatible units. I suggest that you convert the distance of 220 miles to meters, do the division of time = distance/speed to get the time in seconds, then divide that by 60 seconds/minute to get the time in minutes.