the first answer is 59.2 and the second answer is 1.5
        
             
        
        
        
82,300 because you need to round it to the 100 place
        
             
        
        
        
To solve this, we are going to use the surface are of a sphere formula: 

where

 is the surface area of the sphere 

 is the radius of the sphere 
We know for our problem that 

 and 

, so lets replace those vales in our formula:



Now, we just need to solve our equation for 

:





 or 

Since the radius of a sphere cannot be a negative number, 

.
We can conclude that the radius of a sphere with surface area <span>2,122.64 </span>

 is 
13 in.
 
        
        
        
To find which ratio is higher, we can first convert the ratios into fractions (that makes it easier, at least for me) and then simplify the fractions and see which one is greater. 
Since ratios are basically division, 15:20 =  , and
, and 
12:16 = 
Now we simplify these fractions. 15 and 20 have a GCF of 5, so taking out the common number gives us the simplified fraction of  .
.
12 and 16 have a GCF of 4, so taking out the common number gives us the simplified fraction of  . Since
. Since  =
 =  , these ratios are the same.
, these ratios are the same.
 
        
             
        
        
        
Yes divide by 6 both top and bottom and u get 1/10