These tables of ordered pairs represent some points on the graphs of lines p and r. Which system of equations is represented by lines p and r?

Can some one me, i’ve been asking for so long

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer