Aiden bought 8 magazines that each cost the same amount. He paid a total of $21.12. How much did he pay for each magazine? Enter your answer in the box. Enter answer

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

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.

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6