Select all of the equations that could represent the quantities and constraints in this situation. 12(15) b. 3m + 4.50 =b c. 40 = 6 d. 4(4.50) = 0 e. b = 2(3) + 3( 4.50)​

Divide. write in simplest form 41/6 divided by 10

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.

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?