How many floor boards 2-1/4 inches wide are needed to cover a floor 15 feet wide

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

What is the slope of the line that contains the points (-2,1) and (0,-3)