Answer:
I'm not really sure but I think it's 6:40
Step-by-step explanation:
What I did is I added 30,20,and 15 minutes which is 6t min if u put that into hours it's 1 hr and 5min so if u subtract that from 7:45 it's 6:40 so I think that's the time he needs to get up.
......
...............................
6x+2
your combine like terms...
so 13x is teh same as -7x
13x-7x= 6x
3 and -1 are the same as well
3-1=2
so teh answer would be