Which is the graph of y = -3?

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

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.