Solve this but X = -13 over 18. X is a fraction, -13 over 18 is X. PLEASE SOLVE THIS WITH X REPLACED AS THAT.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

Is the point (0, 8) on the x-axis or y-axis? how do you know?