Answer: K = 0 
Step-by-step explanation:
I'm pretty sure this is right or not. 
 
        
             
        
        
        
Answer:
It’s 60miles
Step-by-step explanation:
We assume the trip is "d" miles and that the "extra hour" refers to the additional time that a current of 2 mph would add. That is, we assume the reference time is for a current of 0 mph.
The time with no current is ...
  time1 = distance/speed
  time1 = d/12 . . . . hours
With a current of 2 mph in the opposite direction, the time is ...
  time2 = d/(12 -2) = d/10
The second time is 1 hour longer than the first, so we have ...
  time2 = 1 + time1
  d/10 = 1 + d/12
  6d = 60 + 5d . . . . multiply by 60
  d = 60 . . . . . . . . . subtract 5d
The one-way distance is 60 miles.
 
        
             
        
        
        
So : 

?
First, you want to bring everything together on the top of the fraction. 
12=24/2 so you can have 

Add like terms -- 12 +24 = 36       

Now we are at 

 Which is the lowest possible simplified version while remaining at exact value. 
Feel free to check my math! I kinda did this off the top of my head. 
 
        
        
        
The answer is D. The +1 refers to the extra cup leftover from a previous bag. X represents how many cups are in each bag, and that is what you need to know. The three represents how many bags she bought, and the 25 represents how many cups of birdseed she had overall.
Hopefully this helps!
        
                    
             
        
        
        
1000 j etyuu was the night of my school week I am so