Brandon mows the neighbor's yard to earn extra cash during the summer. He estimates that he
1
an acre every hour. How many acres
does he mow each hour?
mows

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.