Answer:
C. c(t) = 21 + 12t
Step-by-step explanation:
 
        
             
        
        
        
Answer:
14.11
Step-by-step explanation:
.83*16.5=14.11
 
        
                    
             
        
        
        
Answer:
24
Step-by-step explanation:
you would multiply 12 time 2
 
        
                    
             
        
        
        
Answer:
18%
Step-by-step explanation:
9 over 50 equals 18 over 100, 18 over a hundred equals 18 percent