Samuel orders dvd’s from an online music store. each dvd costs $9.99. he has a 20% discount code, and sales tax is 6.75%. what is the total cost of his order?

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.