Answer:

Step-by-step explanation:
We need to find union of given sets
and 
We know by definition that union of two given sets say A and B is set C with all the unique and common values given in set A and B.
∴
∪
= 
Substitute the values of a and b into the expression:
11 + 3 - 2
Add first because of order of operations (perform addition and subtraction in the order of occurrence from left to right):
14 - 2
Subtract (same justification as above just with subtraction instead):
12
Hope this helps!
Answer:
wait, its r + 0.5
Step-by-step explanation:
Answer:
B. 41
Step-by-step explanation:
took the test and got it correct :)
Answer:
A. 4th quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
Step-by-step explanation:
No need to explain