Answer:
7 hours and 48 minutes
Explanation:
let us recall the following from the question,
The Senator Kennedy's initiative proposal of extending the school day by = 30% of radical increase
The school day hour is = 6 hour
Then
30% of 6 hour = 30/100 x 6 = 1.8 hours, which is  the extended school hour
The total hour =  6 hours  + 1.8 hours = 7.8 hours
Therefore,
8 hours = 8/10 to minutes = 8/10 x  60 = 48 minutes
or 7.8/10 x 60 = 46.8 minutes
The total time  = 7 hours and 48 minutes or 7 hours 46 minutes.
