I think it’s AC, but I may be wrong
        
                    
             
        
        
        
Answer:
ln (3x^2)
Step-by-step explanation:
ln3 + 2ln(x)
 = ln3 + ln(x^2)
 = ln (3x^2)
 
        
             
        
        
        
Answer:
he would be at 16.50ft. below sea level. 
Step-by-step explanation:
If you are below sea level, the feet would be negative. -11.75 + -4.75 would be -16.50ft below sea level.
Let me know if this helps!!!! 
:D
 
        
             
        
        
        
Answer:
7.5, 27, 51
Step-by-step explanation:
19.5 + 24 + 7.5 = 19.5 + <u>7.5</u> + 24 = <u>27</u> + 24 = <u>51</u>