Answer:
A and B
Step-by-step explanation:
You can take a look at a unit circle to find the solution to this problem (see below).

Hope this helps!
Answer:
the third from the top option
Step-by-step explanation:
Area:66 Perimeter:36
Step-by-step explanation:
Perimeter: 9+9+5+3+4+6: 36
as 9-5 is 3
and 9-3 is 6
Area: 9*6 +3*4: 66
Answer: 49.5 round up to 50
Explanation: add the area of a rectangle plus the area of a triangle
Answer: 
Step-by-step explanation:
<u>Given equation</u>

<u>Expand the parenthesis and apply the distributive property</u>


<u />
<u>Combine like terms</u>


<u>Subtract 8 on both sides</u>


<u>Divide 2 on both sides</u>


Hope this helps!! :)
Please let me know if you have any questions