The cost of the 9th item is  $3.94
Since the mean cost for the 9 items in his bag was $2.71. Then, the total cost will be: = 9 × $2.71 = $24.39
In order to get the price of the 9th item, we have to calculate the price of all the 8 items given which will be:
$2.01 + $2.20 + $2.68 + $3.59 + $3.12 + $1.64, + $1.75 + $3.46 = $20.45
Therefore, the cost of the 9th item will be:
= $24.39 - $20.45
= $3.94
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Answer:
first, find the area of the circle cut.
r= 3 feet
π=3.14
area of a circle= πr²= 3.14×3×3= 28.26 sq.feet
Now, find the area of the rectangle and subtract it by the area of the circle.
area of rectangle = l×b
length of the rectangle= 16 feet
breadth/width of the rectangular garden= 14 feet
area=  16×14= 224 sq. feet
now, area of the garden surrounding the koi pond=  224-28.26
                                                                                      =195.74 sq. feet
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given

Required
Solve
First, convert 180lb to kg


 -- to 1dp
 -- to 1dp
Next, convert 12oz to kg


 --- to 1 dp
 --- to 1 dp
So, the expression becomes:



Hence:

 
        
             
        
        
        
Answer:
x = 11
Step-by-step explanation:
 
        
                    
             
        
        
        
The distance bewtween -12 and 19 is 31 
and -2 -7 is 5
and then 25 and -1 is 26