Both recipes would add up to 1 5/12 this is using the black widow way
        
                    
             
        
        
        
Answer:
m = - 1/4
Step-by-step explanation:
When two line is perpendicular to each other the product of them is - 1
So let the other line be B
Gradient of B = t
Gradient of A = 4

therefore m = - 1/4 
 
        
             
        
        
        
Answer:
3685.7%
Step-by-step explanation:
Please don't get mad if it's wrong.
 
        
                    
             
        
        
        
No decimal can be whole number but the rational number