Find the exponential function that passes through the points (1, 3) and (2, 9). a) y = 12x b) y = 9x c) y = 6x d) y = 3x

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue

What is the measure of the smallest angle in the diagram? 15 29 32 45

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.