Answer:
Wdym? Do you have another question on your pf or something?
Step-by-step explanation:
Let me know if I can help! 
Have a nice day <3
 
        
                    
             
        
        
        
Answer:
C) 
Step-by-step explanation:
By the cos double angle formula, we know  Substituting
 Substituting  into the formula, we get
 into the formula, we get
 .
.
The answer is C.
  
        
             
        
        
        
Answer:
61 years old
Step-by-step explanation:
26 plus 3 is 29 and 29 times 3 is 87 and 87 minus 29 is 61
 
        
                    
             
        
        
        
Answer:
if you want it in standard form it would be −1/4x-1/2x-5/6
If you want it simplified it would be -3x/4-5/6
Step-by-step explanation:
(This is the best you'll get for 5 points)