Answer:
negative
Step-by-step explanation:
calculating the z score by subtracting the mean and dividing by the standard deviation
(55-70)/10= -1.5
It's negative
 
        
             
        
        
        
Seventy-three is the answer
        
             
        
        
        
Answer:
A quotient is division.
Step-by-step explanation:
Addition is sum
Division is quotient
muultiplication is product 
subtraction is difference