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
        
             
        
        
        
Answer:
A)
Step-by-step explanation:
Similar figures have corresponding angles equal.
Vertex S corresponds to Vertex N, so angel S is also 42°
 
        
             
        
        
        
D. The no. of bags of grapes left in the fruit drawer after taking out one of 9 bags of grapes
        
             
        
        
        
Answer:
D
Step-by-step explanation:
3/4 everything else is a whole number