Simplify negative 6 and 1 over 4 – negative 2 and 1 over 8.
4 1 over 8
negative 8 3 over 8
negative 4 1 over 8
8 3 over 8

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

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]