I will be using * as the degree symbol
Answer:
a) 105*
b) 105*
c) 105*
Explanation:
a) the car is facing west or left. If you imagine it spinning completely around to face east, it would be turning 180*. However it does not go that last 75* shown on the map. So 180 - 75 = 105
b) The angle diagonal to the 105* angle is also 105*. And since 3rd and 4th street are parallel so is the angle you are trying to find
c) This is the same turn as the first one but opposite