Final answer:
In Python, unary operators have the highest precedence compared to the addition, subtraction, and multiplication operators. They are executed first if no parentheses are used to denote a specific order of operations.
Step-by-step explanation:
You asked which operator has the highest precedence among unary operators, the addition operator (+), subtraction operator (-), and multiplication operator (*) according to Python's precedence rules.
In Python, the operator with the highest precedence is the unary operator, which includes unary plus and unary minus (e.g., +some_number or -some_number).
These unary operations have higher precedence than multiplication (*), addition (+), and subtraction (-), and therefore are evaluated first when there are no parentheses to explicitly indicate order.