I am pretty sure that B is the answer
Answer:
-48
Step-by-step explanation:
Answer:

Step-by-step explanation:
By definition if two events are mutually exclusive then they are disjoint events, that is, they can not occur at the same time.
In general terms we say that events are mutually exclusive, then:

In this case we have that

But A and B are mutually exclusive events, then 
Answer:
corresponding angles because it is in a F pattern shape
always corresponding angle is denoted from F pattern and its sum is always equal