The minute hand on a watch makes a full rotation each hour. In 30 minutes, the minute hand makes half of a full rotation. a. In how many minutes does the hand make 1/6 of a rotation b. In how many minutes does the hand make 1/6 of half a rotation? c. What fraction of an hour is 1/6 of half a rotation? d. How many degrees has the minute hand moved in 1/6 of a half rotation