Answer:  D
Step-by-step explanation:
 
        
             
        
        
        
Answer:
25
Step-by-step explanation:
You add 2+3 and get 5. Then you square it to get 25.
 
        
                    
             
        
        
        
Answer:
Number line graph with closed circle on 30 and shading to the right
because you already have 30 dollars and they need at least 120 but if they get more then 120 they can still hold the science fair.
THIS ANSWER ISN'T MINE. I TOOK IT FROM AN ANSWER TO THE SAME QUESTION ANOTHER USER POSTED. 
 
        
                    
             
        
        
        
Same-side interior angles, which are shown here, are supplementary, which means that they add up to 180 degrees.
5a + a = 180
6a = 180
a = 30 degrees
Hope this helps! :)