Ok 
7.12^2 = 24in^2
8.put 400 for each x and see what is close to the nearest tenth
9.u reverse it 6-9=? then square root ?
and 10. u do the same as nine and 1 more number to subtract
        
             
        
        
        
Answer:
Step-by-step explanation:
2(2x+7+3x+8)
 
        
             
        
        
        
Answer:
285.00 
Step-by-step explanation:
Because you change 57 to a decimal (57.0) then you multiply.
57.0×2.3=285.00
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Answer:
1.	trapezoid	
A quadrilateral with at least one pair of parallel sides.  
2.	bases of a trapezoid	
The parallel sides
3.	legs of a trapezoid  
The nonparallel sides.  
4.	median of a trapezoid  
The segment connecting the midpoints of the legs.  
5.	isosceles trapezoid	
A trapezoid with legs of the same length.