Answer:
x>2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
r=-3
Step-by-step explanation:
 
        
                    
             
        
        
        
Its 12. Part a was 2 part b was 3
6×2=12
4×3=12
        
             
        
        
        
Answer:
5.2 × 
Step-by-step explanation:
a number in scientific notation is expressed as
a × 
where 1 ≤ a < 10 and n is an integer
write 0.0052 as a number between 1 and 10, that is 5.2
we have to the move the decimal point 3 places to the left to retain it's value
3 places left means n is - 3
0.0052 = 5.2 × 
 
        
             
        
        
        
I have a screenshot of the answer