Remember the PEMDAS
Parenthesis and exponents
Multiplication and division
Addition and subtraction
Here is the first problem
2+6*3^2
You would start with the 3^2 and that is basically 3*3=9
2+6*9
then you would do the 6*9=54
2+54
then you would simply add them and you would get 56
A.56
Second problem
3*4^2-2*6
This one looks complicated but its just as easy as the first problem.
4^2 is like 4*4=16
3*16-2*6
so the next step would to be multiply the 3*16=48
48-2*6
then you would multiply the 2*6=12
48-12=36
B. 36
Hope this helps you!