Step-by-step explanation:
2x + 1 = 16
2x = 15 (subtract 1 on both sides)
x = 7.5 (divide 2 om both sides)
Since 7.5 is not an integer, (a) is No.
However 7.5 is rational, therefore (b) is Yes.
 
        
                    
             
        
        
        
Answer:
x = 25°
Step-by-step explanation:
2x-10°+2x-10°+100°=180°[sum of angles in a triangle ]
4x+80°=180°
4x=100°
x=25°
 
        
             
        
        
        
Lets price of article = x
Tax  is 8%  of article = 0.08x
x+0.08x=7.02
1.08x=7.02
x=7.02/1.08 
x=6.5
The retail price is $6.50.
        
             
        
        
        
Answer:
−
3
−
9
n
Step-by-step explanation:
Simplify the expression
 
        
                    
             
        
        
        
Answer:
63
Step-by-step explanation:
You would add 41 + 18 + 4, which obviously gets you 63. Hope this helped!