Answer:
current speed = 12 mph 
Step-by-step explanation:
distance / rate = time 
time upstream + time downstream = 26    
25 / (13-c)         +      25 / (13+c)         = 26         ( c = current speed)
solve for c = 12 mi/hr 
 
        
             
        
        
        
6 is added to itself z many times whilst z is multiplied by itself 6 times.
        
                    
             
        
        
        
Answer:
f(x) – g(x) = x^2 - 4x + 3 
Step-by-step explanation:
f(x) = 3x^2 - 4x + 5 and g(x) = 2x^2 + 2,
 f(x) – g(x) = 3x^2 - 4x + 5 - ( 2x^2 + 2)
Distribute the minus sign
f(x) – g(x) = 3x^2 - 4x + 5 - 2x^2 - 2
   Combine like terms
f(x) – g(x) = x^2 - 4x + 3 
  
 
        
             
        
        
        
Answer:
Line A:  constant of proportionality is 4/3
Step-by-step explanation:
The equation in question is y = (4/3)x, where (4/3) is the constant of proportionality as well s the slope of the line.  The only line here that has a slope greater than 1 is the blue line (A).
 
        
                    
             
        
        
        
Step-by-step explanation:
substitute a with 2 and b with 3
2x+3
because it's the same equation it should just be an equal sign.