Answer:
B. {-2, 0, 1, 3}
Step-by-step explanation:
See attached image.
Answer:

Step-by-step explanation:
All the angles in a triangle add up to 
Every right angle triangle has a right angle in it which is 
So to find the remaining angle, you do
-
-
= 
Answer:
The number is 9.5
Step-by-step explanation:
Look at the picture above, it explains everything
Answer:
32
Step-by-step explanation:
16*2=32
8*4=32
Answer:
a and c
Step-by-step explanation: