Answer:
65.3 hours
Step-by-step explanation:
Number of sleep hours needed by a teen per day = 9 1/3 hours = 28/3 hours
Number of days in a week = 7
Number of hours needed by the average teenager per week = 28/3 x 7
Number of hours needed by the average teenager per week = 65. 3 hours
There is no correct choice in the options