PLEASE HELP Write down the equation of each of the following lines:

1) Parallel to y=4x and passing through (-1,3)

What is the area of the triangle 10 13 12

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

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.