Answer:
-13/4
Step-by-step explanation:
common denominator - 
2*-7/2*2)+1/4=-14/4+1/4
= -13/4
 
        
             
        
        
        
Answer:
pi times 4
Step-by-step explanation:
Circumference: pi times diameter (pi)(d) or pi times 2 times the radius (pi)(2r)
 
        
                    
             
        
        
        
Answer:
B. √50
Step-by-step explanation:
 is 49 so √49 is 7
 is 49 so √49 is 7
So,
since the <u>closest number to 49 is 50</u>, that is the answer.
 
        
             
        
        
        
Answer:
pretty sure it's 56 I could be wrong though