So -56 -13 = -69
So the answer would be 69? 
You didn’t show the options.
        
             
        
        
        
Answer:
The answer is C
Step-by-step explanation:
I pick that answer because you have divide
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
99.96
Step-by-step explanation:
Your height is correct. 
Part B is asking for the length of the hypotenuse.
76.6^2 + 64.25^2 = x^2
x^2 = 9995.6225
x = 99.96 or 99.98 depending on if you round to 76.6 or not