Answer:
1.
Q- acute
R- right 
S-acute
2. 
- QRS is a right triangle because it has a small square at the right angle.
hope this helps!
Step-by-step explanation:
 
        
                    
             
        
        
        
The answer would be 60 because its multiplication all those numbers
        
             
        
        
        
Answer:
y=1
You can put equations in a graphing calculator if you aren't sure.
 
        
             
        
        
        
Answer:
answer below
Step-by-step explanation:
in this case the decimal will be recurring so 1 and 2 thirds is 1.6 recurring and 2 and 7 nigths is 2.7 recurring so just plot in between the intervals so the first one could be between 1.6 and 1.7 and the sexond between 2.7 and 2.8