Ms. perozo is decorating a square bulletin board. she used exactly 312 centimeters of checkered ribbon to create a border. now he needs to cover the board with fabric . how many square centimeters of fabric will he need to use to cover the board?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

Solve 13 + w/7= -18 (w/7 is a fraction)