Answer:
60
Step-by-step explanation:
Pemdas = Order Of Operations
parentheses first
(2+1)=3
-
12+9x4^2/3
now exponents
4^2=16
12+9x16/2
now x and / left to right
9x16/2=72
12+72
now addition left to right
12+72=84
Answer:84