In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '?' and '?' represents '-'. What is the answer to the following question? 80 x 16 ? 4 + 2 - 8 = ?
In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '?' and '?' represents '-'. What is the answer to the following question? 80 x 16 ? 4 + 2 - 8 = ? 1). 11 2). 64 3). 30 4). 5