Answer:4.068
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Angle C = 45 degrees.
Angle D = 30 degrees.  
Step-by-step explanation:
Angle C = 45 + 90 = 135   180 - 135 = 45. 
Angle D = 180 - 45 = 135 (angle F)   15 + 135 = 150   180 - 150 = 30
 
        
                    
             
        
        
        
Answer:
-2y+6
Step-by-step explanation:
Multiply (y-3) by -2
 
        
                    
             
        
        
        
The perimeter is the distance around the object so you add 4+10+4+10 to get 
28 inches as the perimeter of the rectangle
        
                    
             
        
        
        
Answer:
m = 6.75, -3.25
Step-by-step explanation:
In order to solve this, you have to solve for M by simplifying both sides of the equation and than isolating the variable. 
When you do this, you get the answer m = 6.75, -3.25