Answer:
C
Step-by-step explanation:
Well, first off 1 hr =60 minutes. 60 min - 45 min = 15 minutes extra. what is one hour before 4:15? 3:15! Add the subtracted 15 minutes to get 3:30... Hope this helps
Number 8? I don't know which one you are talking about.
Answer:
A. 
Step-by-step explanation:

I am joyous to assist you anytime.