Answer:
42*7
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: The open interval would be (31.4,42.5).
Step-by-step explanation:
Since we have given that 
mean = 36.9
Standard deviation = 16.5
n = 48
At 98% confidence interval, z = 2.33
So, Interval would be 

Hence, the open interval would be (31.4,42.5).
 
        
             
        
        
        
The answer for your question is C. The reason is I multipled 15 and 6 which gave me 90 and that is closest to the answer C which is 72.73.
Hope this helps:)
        
             
        
        
        
If your looking for the equation it would be 3.95 + 0.85t = Price