How do i write 2.086 in expanded notation using fractions

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no

Suppose m: angle a =77 degrees what is the measure of a complement of a complement of angle a, what is a conclusion you can draw about a complement of a complement of an angle

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?