Answer:
x = 67
Step-by-step explanation:
If the measure of the entire chord is 166°, then if you add the two angles that form it together, it will equal 166. 
So, 
x + 15 + x + 17 = 166
Simplify.
2x + 32 = 166
Subtract 32 from both sides.
2x = 134
Divide both sides by 2.
x = 67
I hope this helps! Feel free to ask any questions! 
 
        
             
        
        
        
Answer: rational
Step-by-step explanation:
-6 can be written as such an infinite number of ways (just as any rational can be). For example, -6/1, 6/-1, 12/-2, -666/111 and so indeed -6 is rational.
 
        
                    
             
        
        
        
Answer:
An apple costs £0.25
A banana costs £0.34
Step-by-step explanation:
 
        
             
        
        
        
Answer:
2
Step-by-step explanation:
You would replace the x with -2x so you would end up with -2×-2 and that is 4 then minus 2 is 2. 
 
        
             
        
        
        
X(x+1) 1(x+4)
x^2+x+x+4
x^2+2x+4