Answer:
 • changing an interior angle to a reflex angle
Step-by-step explanation:
In order for the outline of the polygon to have a pair of sides that is concave (pointed inward, rather than outward), the corresponding interior angle must be a reflex angle. (It must measure more than 180°.) Draw one; you'll see.
 
        
             
        
        
        
D the rest would be impossible to recreate
        
                    
             
        
        
        
Answer:
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Step-by-step explanation:
n8uj98ju6g
 
        
             
        
        
        
Answer:
10/6
Step-by-step explanation:
all you have to do is divide x2 or 5 in this case - x2 or -5 with y2 or 3 - y1 or 3 so it would be 
(5--5)/(3--3)
and 2 negatives are a positive so it would turn to 
5+5/3+3   or    10/6
please rate 5 stars i would really appreciate it
 
        
             
        
        
        
7 1/4 - 2 4/5
Turn the denominator into a common denominator for both fractions:
7 5/20 - 2 16/20
To subtract easier, turn the fractions into an improper fraction:
145/20 - 56/20
Subtract the numerators:
145 - 56 = 89 ---> 89/20
Simplify (to get an answer of): 
4 9/20 
Add labels:
Joseph has 4 9/20 ounces of candy left