Answer:
5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Mostly correct
For Q3, you are doing great, you remembered that negative numbers can happen if the exponent is an odd number.
For Q4, I think you were confused with the fractions,
4(i)

4(ii) is also wrong but I'll let you try to fix it yourself following what I given you for 4(i). You should get 1/64
Hope this helps!
 
        
                    
             
        
        
        
Answer:
1 
Step-by-step explanation:
Ok, so the third and fourth don't seem right. I am going to assume it's either 1 or 2. Sorry if you get it wrong because of me. 
 
        
             
        
        
        
Answer:
x = (180-147)/3
x = 11
Step-by-step explanation: