Answer:
A is true, see why below
B is true, see why below
C is false, see why below
D is true, see why below
Step-by-step explanation:
A is true because it is adjacent and they are both supplementary to each other, so the sum of them both would lead to 180
B is true because it is vertical to 7, which also means it is the same as 7.
C is false because those angles are not complimentary, therefore they will not add up to 90.
D is true because 4 and 5 are adjacent, they are also supplementary, therefore the sum of 4 and 5 = 180.
