Answer:
C, 45 degrees
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
.5236
Step-by-step explanation:
Formula for sphere volume:
V = 
substiture 0.5 for r:
 = .5236
 
        
             
        
        
        
Answer: C. 14 
3 people weigh between 150-159
4 people wiegh between 160-169
7 people wiegh between 170-179
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
Since A, B, and C are all true, D should be false. 
I hope this helps!