Answer: 28 
Step-by-step explanation: you have to add 21 + 7 because your counting up from -7 to 21
 
        
             
        
        
        
Step-by-step explanation:
CCC and I have a very different view on the situation than the one I have been using for me since 6AM when you have been in the same situation for me and my 
 
        
             
        
        
        
There is no one answer (ordered pair) to this equation and the answer is found by graphing or trying out different values for each variable. Anyway, here are some solutions; (1,0), (4,1), (0,-1/3).
        
             
        
        
        
Step-by-step explanation:
Two legs of the right triangle are 6 and 9. We can find its third side as follows :

The above is called Pythagoras theorem and it is applicable for a right angled triangle.
a,b and c are base, perpendicular and hypotenuse respectively
c is the third side
So,

Hence, Cade and Tyce both are correct. The length of the missing side is 10.82