Answer:
a=35°, b=55°, c=110°
Step-by-step explanation:
reason for a and b is that when 2 lines intersect, the opposite angles are equal.
well for c angles on a straight line add upto 180.
84902
the answer is 420
15h
Step-by-step explanation
-5g plus 15h is 10 h minus 25 is 15h