I need help with this question asap please

What is the base of 1/9 to the power of 2

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values