Answer:
Step-by-step explanation:
b, i'm not sure but thats what i think. 
 
        
             
        
        
        
Answer:
addition and multiplication 
Step-by-step explanation:
add 4.5 + 1.5 to get 6 ft and then multiply that by 7
 
        
             
        
        
        
Hm. one that would come to mind is the fact that a professor is applying for a job at a highschool when they have no teaching expireince. hope this helps
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