The answer would be, D (67.12)
Explanation;
The answer would be, 67.12 cause if you do order of operations you would use Pemdas to solve this.
P: Parentheses
E: Exponents
MD: Multiplication and Division
AS: Addition and Subtraction
So, first you would do parentheses.
(O.87+1.13)
Which is, 2.
Then you’d multiply this by the answer to, 37.56-4 which is, 33.56. Which is 67.12