you need to subtract 30 minutes from 3:14. you can take out the 14 and subtract it from the 30 to make things easier, then subtract the other 16 from 3:00 and youll get 3:44 :) hope this helps :)
3:14 Plus 0:30
Equals To 3:44
Write an equation of the line perpendicular to the given line that contains P.