Answer:
8 hours and 30 minutes
Step-by-step explanation:
If you divide the hours by the number of days you will get your answer for the average amount of time spent each day. So, 153 hours divided by 18 days is 8.5. 8.5 can also be converted into 8 hours and 30 minutes and .5 is half of a number and 30 minutes is half of an hour. Therefore, your final answer is 8 hours and 30 minutes. Hope this helps! :)
