Answer:
Step-by-step explanation:
calculate the total
42+ 14 = 56
42/56 = x/100
4200 / 56x = 75
the answer is 75%
 
        
             
        
        
        
318.5
13 x 7 x 7/2 = 318.5 inches 
Follow the formula
        
                    
             
        
        
        
Answer:
Could you please add a photo or the quadratic function? 
 
        
             
        
        
        
3(x-7)+8=-20
Multiply the bracket by 3
(3)(x)(3(-7)+8= -20
3x-21+8= -20
3x-13= -20
Move -13 to the other side. Sign changes from -13 to +13.
3x-13+13= -20+13
3x= -7 
Divide by 3 
3x/3= -7/3
x= -7/3 or in mixed number : -2 1/3
Answer : x= -7/3 or in mixed number : -2 1/3
 
        
                    
             
        
        
        
Answer:
i belive 11 and 1 sorry if it is not right
Step-by-step explanation: