How would I figure out 22:11*9-3 to the power of 2

22/11 * 9 - 3^2 ... do exponents first

22/11 * 9 - 9 ... now start from the left and go right ... doing all multiplication/division in the order it comes first.

2 * 9 - 9 =

18 - 9 ... now starting from left to right ... do all addition/subtraction in order it comes first.

9 <==