So she used 

 of the cord to make necklaces.

She splits the 

 length into 4 equal lengths.
To divide a fraction by a fraction, you multiply it by its reciprocal.


She used 

 of the original chord to make each bracelet.
 
        
        
        
For all triangles, the angle sum is 180°, therfore we can add all the angles up to solve x
54 + 55 + x + 74 =180
183 + x =180
X = 180 - 183
X = - 3 °
Don't worry, negative result is normal and possible.
        
             
        
        
        
Answer:
using the formula 
 we replace the coordinates 
the we calculate 
the answer will be square 100 which will give us 10
 
        
             
        
        
        
Answer:
5(x+1)
Step-by-step explanation:
 
        
             
        
        
        
Answer: 65000$ worth of things
This is edited, because I got it backwards last time.
We need to make 2500, but she only makes 4% of whatever she sells.
That means the equation is 
2500 = 0.04x
Now, we just need to divide both sides by 0.04 and we get 65000.
Sorry for the confusion.