Answer:
5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
1) Lets rewrite the expression in expanded form to make is easier to understand:
(8*8)÷(2*2*2)
2) Simplify the interior of the parenthesis:
(64)÷(8)
3) Divide:
8
 
        
             
        
        
        
Step-by-step explanation:

 
        
             
        
        
        
I think b is y would 15 and x is 3 making 15=3•5 or 15•3=45
        
             
        
        
        
1. u must simplify 3^2 first because the order of operations states that u have to do exponents before subtraction.
2. 12 - 3^2 = 81......she subtracted the 3 first....12 - 3^2 = 9^2 = 81...which is an incorrect answer
3. u do not divide before simplifying 3^2.....order of operations states that u have to do exponents before division
4. no.....(12 - 3)^2 ......order of operations states that u do parenthesis before exponents...so (12 - 3)^2 = 9^2 = 81