There is nothing to "evaluate" there; that's a pure number.
It's 3, what's to evaluate?
Unfortunately there is no expression to evaluate!
103 = 1000 (the number of zeros after the one is the same as the power to which 10 is raised.
It is a negative rational number. Whether it is for evaluate or anything else makes no difference.
Evaluate: -7 - 8
It is "find the value of 3 to the 5th power".
50 - 3 = 47
the answer is 5
C-3 = 1/(c3)