Which of the following are solutions to the equation y = 3x2 + 16x- 12?

Does the point (1, sqrt 7) lie on circle shown.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

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.