look it up 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
T(2, -7) = (4, -10)
Step-by-step explanation:
T(x, y) = (x + 2, y - 3)
T(2, -7) = (2 + 2, -7 - 3)
T(2, -7) = (4, -10)
 
        
             
        
        
        
45 = 90% * x
45 = .90x
45/.90 = x
x = 50
45 is 90% of 50 
        
                    
             
        
        
        
Answer:
From 4-5 the shape is rotated 180 degrees.
Step-by-step explanation:
If you are standing up and you jump to face the other way your turning 180 degrees. If you turn to your side that would be 90 degrees and for a full turn 360 degrees.
Hope this helps, please leave any questions or concerns in the comments. Thanks