If you follow PEMDAS
P-parentheses
E-exponent
M-multiplication
D-divide
a-addition
s-subtraction
then you should look in the parentheses and multiplying 3x should be your first step IF you know x
hope this helps :)
A because the square is in the (10) place and the circle is in the (1) place and 10 is 10 times bigger than 1
3(8)-12=12
24-12=12
The fourth choice.
Yeah I think you already got it
Use Math..way. Put in equation, hit solve, will give u val. for N
