Answer:
18
Step-by-step explanation:
90 % 5 = 18 so A would measure 90º
 
        
                    
             
        
        
        
Answer:
a. 
Step-by-step explanation:
The given equation is;
 
To solve by the x-intercept method we need to graph the corresponding function using a graphing calculator or software.
The corresponding function is 

The solution to  is where the graph touches the x-axis.
 is where the graph touches the x-axis.
We can see from the graph  that; the x-intercepts are;
(-1,0),(3,0) and (6,0).
Therefore the real solutions are:

 
        
                    
             
        
        
        
Answer:
Median= 14 
Mean= 90
Step-by-step explanation:
Median:
Put the numbers in order,
4, 7, 9, 14, 16, 19, 20 Then after that you find the number exactly in the middle. That number ends up to be 14.
Mean: 
Add up all of the numbers and then round it to the nearest tenth: 90
Median= 14
Mean= 90