Answer:

Step-by-step explanation:

Answer:
The given expression
Step-by-step explanation:
Here, the given expression is: 
Now, starting from the outer most bracket.
As we know :

and 
⇒ 

Hence, the given expression
Answer:
44.40
Step-by-step explanation:
Answer:
B. SAS
Step-by-step explanation:
67-61 degrees-47
side-angle-side
SAS
Answer:
D: no solution
...because none of the answers work for both of the equations when you plug in the x and y values