Combine the like terms
-x-x^2+7
        
             
        
        
        
Answer:
393.9
Step-by-step explanation:
Multiply 30.3 with 13.. Will get the answer 393.9 
30.3= x / 13 
X = 30.3 x 13
 
        
                    
             
        
        
        
Angle 1 is 122 degrees bc of vertical angle 
Angle 2 is 87 degrees bc of alt ext angle converse 
Angle 3 93 degrees 
Angle 4 is 58 degrees
        
             
        
        
        
Answer:
Try Khan Academy. They give lots of expression to find the greatest difference. It always helps me in this situation. 
Step-by-step explanation: