Answer:
The correct answer is b.
Step-by-step explanation:


No real solutions.
 
        
             
        
        
        
Answer:
I= 84
Step-by-step explanation:
for

since D is the rectangle such that 0<x<3 , 0<y<3

 
        
             
        
        
        
Firstly arrange data from smaller to greater data point:
4 5 6 9 10 11 12 13 15 16
Secondly find the middle value: In our case the number of data is even, so to get the middle value we have to find the mean (average) between 10 & 11, that is 10.5. So the rank of the Median is10.5
        
             
        
        
        
Total value: $144
Explanation: each book cost $4.50