What is the product? (8×10^2)⋅(2.5×10^2) a) 2×10^2 b) 2×10^3 c) 2×10^4 d) 2×10^5

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