<h3>
Answer:  B) 1 & 3</h3>
Explanation:
Vertical angles form when we have an X shape like this. They are opposite one another and always congruent. Angles 2 and 4 is the other set of vertical angles.
 
        
                    
             
        
        
        
We have been given that a colleague has been tutoring six students in 11th grade to prepare for the ACT. Student scores were as follows: 20, 18, 16, 15, 23, 20. We are asked to find the mean of the ACT scores.
We will use mean formula to solve our given problem.  




Upon rounding to nearest whole number, we will get:

Therefore, the mean of the ACT scores is 19 and option 'c' is the correct choice.
 
        
             
        
        
        
You forgot the picture of the square, please repost the question with the picture next time.
        
                    
             
        
        
        
Answer:
Social Security: $9.63                                                                                     
Step-by-step explanation: