Answer:is there a picture along with this? I don't remember how to do these but this sounds like something with a picture included
Step-by-step explanation:
 
        
             
        
        
        
Answer/explanation:
60=5k 
Is the equation because the word is means equals, so we add an equal sign after the 60. Five times greater simply means multiply so we multiply 5 and k.
To solve the equation, you would need to divide both sides by 5 to isolate the variable
60/5=5k/5
12=k 
 
        
             
        
        
        
The most important thing that you have to know is that all angles in a triangle equals 180°
 
        
        
        
I think the answer is c sorry if I’m wrong