Answer:
8
Explanation:
(5 + 16) / 7 + 3^2 - (1 + 3)
21 / 7 + 3^2 - 4
21 / 7 + 9 - 4
3 + 9 - 4
12 - 4
8
Use PEMDAS.
P - Parenthesis
E - Exponents
M/D - Multiply/Divide
A/S - Add/subtract
So for this:
Start with parenthesis: (5+16) and (1+3), so 21 and 4
Then exponent: 3^2, which is 3*3 which is 9
Then divide: 21/7 is 3
And then the rest: 3 + 9 - 4. 3+9 is 12, 12-4 is 8, so you're answer is 8.