The area would be approximately 153.94.
The area of a circle is pie multiplied by r^2. 
So you have the radius, which is r. Plug in r. Technically you have two numbers because pie equals approximately 3.14. 
A=3.14(7)^2 
        
             
        
        
        
You first convert everything to minutes
3hrs= 60x3=180mins
1hr= 60x1=60mins
then you add 20 to 180 
200
and you also add 48 to 60
104
200-104=
96
Then you convert to hrs and mins
96-60=36
1hr 36mins
 
        
             
        
        
        
x is 3. you would subtract 19 from 22 to get your answer 
 
        
                    
             
        
        
        

what is the average cost of 7 articles if 3 of them cost 30k each and the rest cost 12.5k each 

TOTAL NUMBER OF ARTICLE= 7
ARTICLES FOR 30K = 3
ARTICLES FOR 12.5K = 7-3= 4

Average cost of 7 articles




 
        
             
        
        
        
Step-by-step explanation:
height = √6.5² - 2.5² = 6ft