Solve for x when y = 4
2x + 2y = 20

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Determine domain and range, largest open interval, and intervals which function is continuous.