C. m k L hope it helps! not 100% sure
        
                    
             
        
        
        
To do this problem you use is/of=percent/100
So:
320/750=x/100
cross multiply 
32,000=750x
divide both sides by 750
x=42.66 repeating
ANSWER: X=42.66 REPEATING
        
                    
             
        
        
        
Step-by-step explanation:
AB · BE = CB · BD            Given
CB/BE = AB/BD               Division Property of Equality
<ABC = <DBE                  Vertical angles are equal
ΔABC ≅ ΔDBE                SAS Similarity Theorem
Hope it helps
 
        
                    
             
        
        
        
To find the Area you need to use the formula L x W!! Anyways, You have to multiply the Length x the width. Your Length is 1 3/4 and your width is 1 1/2. So 1 3/4 x 1 1/2 is 2 5/8!!