Subtraction 
multiplication 
yayyyyyyyyyyy
        
                    
             
        
        
        
Answer:
y is 1/4 when x is -1 if I did interpret your equation right. Please see that I did.
I believe the equation to be  .  If you meant
.  If you meant  , please let me know.
, please let me know. 
Thanks kindly.
Step-by-step explanation:
If (-1,y) lies on the graph of  , then by substitution we have:
, then by substitution we have:
 .
.  
We just need to simplify to determine y:
 
  
Multiply the 2 and -1:

Use reciprocal rule for exponents to get rid of the negative:

 just means
 just means  :
:

 .
.
 
        
             
        
        
        
The answer for -3/8 divided by -6/7 is 7/16
        
                    
             
        
        
        
Answer:
5.54 inches of rain
Step-by-step explanation:
Monday - 3.11
Tuesday - 0.81
Wednesday - 0.81 x 2= 1.62
3.11 + 0.81 + 1.62=5.54 inches