Closed shape, do not intersect - geometry definition
        
             
        
        
        
Answer:
0.33
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Well, there are different ways to do this if you are really familiar with fractions, but "officially" :P
1) convert mixed numbers to improper fractions.
rule:  a b/c = (ac+b)/c
2)  make all fractions have a common denominator...
a/b+c/d
(a/b)(d/d)+(c/d)(b/b)
(ad/bd)+(cb/bd)
3)
The simplify your final answer with greatest common denominator or convert back to mixed number if needed...
        
                    
             
        
        
        
Answer:
To find the area of composite figures and use area of a circle to find the radius.  Estimate the radius of the circle with the given area.
Step-by-step explanation:
I only say how you can founded 
 
        
             
        
        
        
(3x + 1/2 ) + ( 7x - 4 1/2 ) 
3x+7x + 1/2 - 4 1/2
10x -4