Answer:
27 7/9%
Step-by-step explanation:
Take the selling price and subtract the cost
920 -720 = 200
Divide it by the cost
200/720
.27777777
Change to percent form
27.777777%
27 7/9%
 
        
                    
             
        
        
        
2m-5-5= -3m +15 
2m -10= -3m+15
2m+3m= 15+10 
5m= 25
m= 25/5
m=5
        
             
        
        
        
Answer: 
False 
Explanation:
No, a triangle cannot be constructed with sides of 2 in., 3 in., and 6 in.
For three line segments to be able to form any triangle you must be able to take any two sides, add their length and this sum be greater than the remaining side.
        
                    
             
        
        
        
Answer:
Take a fixed gap and draw 180 degree arc of equal size on each side. 
The compass size should be the same for the whole process, be careful. 
Make 90 degrees angle for both side and cross two arcs from each 90 degrees. The point thus obtained should be produced vertically towards the line AB. The point on the line segment is the line bisector. 
 
        
             
        
        
        
Same as last time:
d^2=(x2-x1)^2+(y2-y1)^2
d^2=(6--1)^2+(-2-4)^2
d^2=7^2+(-6)^2
d^2=49+36
d^2=85
d=√85  (85=5*7 and both 5 and 7 are prime so √85 cannot be simplified any further)
The exact distance is √85 units.