is this like Algebra 1 or 2? you can try to use a graph generator to help 
 
        
             
        
        
        
Here first we have to understand which place is 10 thousand.
6- hundred thousand
2- ten thousand
0- thousand
0- hundred
0- ten
0- one
so as we can see 2 is in ten thousands place.
Now rounding ten thousands place is done by looking up to thousands place.
If the digit at thousands place is 5 or greater than 5 then we change our ten thousands value to one digit higher else it remains same.
Here we have 0 at thousands place , which is less than 5 , so we keep the number as it is.
Answer: 620, 000
 
        
             
        
        
        
Find thy radius.
Thy radius is 7.25 (D / 2 = R)
Thy formula for area is A = (pi)r^2
Substitute and Solve
A = (pi)r^2
   = (pi)(7.25)^2
   = (pi)(52.5625)
   = 165.04625
Therefore, the area is about 165.
        
                    
             
        
        
        
Answer:
45% chance 
Step-by-step explanation:
in the middle of 30% and 60% is 45 and that is the % chance it will rain on both days