Answer: 
135 degrees and 45 degrees
Step-by-step explanation:
Two angles are supplementary when their sum adds up to 180 degrees.
 
        
             
        
        
        
Answer:
Nancy fits the equation.
Step-by-step explanation:
I think they're asking which gorilla fits the equation.
2b - 15 = 605
<em>Add 15 to both sides</em>
2b=620
<em>Divide both sides by 2</em>
b=310
The only gorilla who weighs 310 pounds is Nancy.
 
        
             
        
        
        
A
If you put them all into decimal form you get .1, .3, .9