Describe how to evaluate the expression 3^2 + (21 - 9) X 6÷2. Can someone help me out, please? I'm having trouble, and my teacher isn't responding to my messages.

Step-by-step explanation:

Given the expression

Follow the PEMDAS order of operations

calculate within parentheses  

calculate exponents  

Multiply and divide (left to right)

Add and subtract (left to right)  

Thus,

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.