Through how many degrees does the minute hand of a clock moves in 5 minutes? In 1 1/2 hours?

1 h = 360 °

1 h = 60 min

1 min = 360 ° / 60 = 6 °

5 min = 5 * 6 ° = 30 °

1 1 / 2 h = 1.5 h

1.5 * 360 ° = 540 °