For 4 you just need to multiply the 7 and 33 together and add 32. Then put your awnser over 33. (if it is asking for the fraction)
ok so take 4:20 pm and subtract 4 hrs from it so they left at 12: 20 pm
hope this helps :)
Answer:
the total of angle's in traingle is 180
so 85+53+c=180
c=180-138
c=42
