Answer:
The answer is 4n + 16
Step-by-step explanation:
N is the number of days that pass by. Each day Sam gets 4 more, meaning you would multiply the number of days by 4, before adding that number to the original number of pennies, which was 16.
 
        
             
        
        
        
Answer:
The bottom two 
Step-by-step explanation:
Units of time should always be on the x-axis, otherwise a positive graph would mean a drop in the opposing y-axis unit. 
 
        
             
        
        
        
Answer:
There are 9 arms.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Cuatro es la respuesta también conocida como d