You would substitute all x's with the number 30, so the answer would be f(30)=-1 or y=-1 
 
        
             
        
        
        
Answer:
<u><em>85 degrees</em></u>
Step-by-step explanation:
A triangle's angles must add up to 180 degrees.
50 + 45 = 95
180 - 95 = 85
x = 85
 
        
                    
             
        
        
        
Answer:
Each Eraser cost $3.50
Step-by-step explanation:



Have a nice day. Hope I helped. Don't forget to mark Brainliest!
 
        
                    
             
        
        
        
210,064,050 is the correct answer
        
                    
             
        
        
        
Answer:
-16
Step-by-step explanation:
m^2 + n^2
-5^2 + 3^2 = -16