Which expression is equivalent to √225/625m^4n^6?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?