Hello!
Let's go through the given choices to find which word is a synonym for knocking.
A. Rapping means to strike something, specifically hard, loudly, to attract attention.
B. Ticking means to make sharp, short movements like a clock does.
C. Thundering means to make a loud, deep noise.
D. Popping means to make an explosive sound.
Therefore, the answer is A, rapping because knocking is striking a surface to get attention, which is similar to rapping. 
 
        
                    
             
        
        
        
I think it’s the 2nd and 5th one
        
             
        
        
        
It means that a certain amount of people were very carefully watching her every move, either they were judgmental or curious about her
        
             
        
        
        
Answer:
x = 13/3 or 4.3 repeating (4.333333.....)
Explanation:
3x + 2(4x - 6) = 8x + 1
3x + 8x - 12 = 8x + 1 (expand using distributive property)
11x - 12 = 8x + 1 (combine like terms)
11x - 12 + 12 = 8x + 1 + 12 (add 12 to both sides)
11x = 8x + 13 (simplify)
11x - 8x = 8x - 8x + 13 (subtract 8x from both sides)
3x = 13 (simplify)
3x/3 = 13/3 (divide both sides by 3)
x = 13/3 or 4.3 repeating (4.333333.....)