Gavin has a superhero lunch box collection with 9 lunch boxes in it. From now on, he decides to buy one new lunch box every year for his birthday. Let y represent the number of years from now and b represent the total number of lunch boxes in his collection.

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.

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%

How many roots does the graphed polynomial function have? 1-02