Well she charged twice as much to walk large then small. Let s be small and l be large.
We we know that 
l = 2s
we also know that she wants to make 100 so
xl + ys = 100
Where where x is number of large and y is number of small. it says she walked 10 small and 5 large so
5l + 10s = 100
substitute 2s for l because they are same value as shown in first equation I made
5 (2s) + 10s = 100
10s + 10s = 100
20s = 100
s = 5
we can now solve for l
l = 2s
l = 2 * 5
l = 10
So s is 5 and l is 10. 
        
             
        
        
        
Answer:
5/12 * 300 = 125 times
explain:
I hope this answer can help
 
        
             
        
        
        
Answer:
A exterior angle of a polygon is an angle outside the polygon formed by one of its sides and the extension of an adjacent side.
 
        
             
        
        
        
2x + 6y = 12
2x - 2x + 6y = 12 - 2x
6y = 12 - 2x 
6y/6 = 12/6 - 2x/6 
Y = 2 - 2/6 X 
Y = 2 - 1/3 X or 
Y = -1/3 X + 2.