Final answer:
The value of xº cannot be determined as it is not a standard mathematical operation.
Step-by-step explanation:
To find the value of xº, we need to understand what the symbol º represents. In mathematics, the symbol º denotes degrees. It is commonly used in trigonometry and geometry to represent angles.
However, in this question, it seems that x is multiplied by xº, which is not a standard mathematical operation. Therefore, it is not possible to determine the value of xº.
The correct answer is D. 30, as none of the options A, B, or C are valid representations of x.xº