Gino is buying wood screws at the corner hardware store. the table shows different numbers of bags of screws and their corresponding prices.

according to the table, the relationship between the number of bags and the price is:
a) proportional
b) not proportional

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Construct the graph that models the given situation

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.