Answer
3.43
Work Step by Step
This is an order of operations problem. Thus, we first consider the stuff inside of the parenthesis, raising 2 to the second power and then adding 3. Finally, we divide:
$ 24 \div (3+ 2^{2}) \\\\ =24 \div (3+4) \\\\ = 24 \div 7 \approx 3.43$