Answer:
I guess. Just post question. 
 
        
                    
             
        
        
        
15x - 5y = 1 it's B in standard form
 
        
             
        
        
        
Answer:
I think its c?
Step-by-step explanation:
Im sorry if its wrong.
 
        
             
        
        
        
Y= -3x +4 
So from the equation we can tell that m is 3 . 
(0,-1) 
(x, y) 
0 = x 
-1 = y 
M = 3 
Y = mx+ c 
 Just insert it 
-1 = 3(0) + c 
-1 = c 
So thts mean the answe is y = 3x-1 
        
             
        
        
        
Find the ratio of 4/15 lb to 1/3 lb:
4
--
15
-------
1
--
3
Invert the divisor (1/3) and multiply:
4        3
--   * ---- = 4:5  (this is the desired ratio)
15      1