Lennon has a checking a count. he withdrew $130 from an atm tuesday. wednesday he deposited. $240. friday he wrote a check for $56 what was the total

In the rectangle below ac=30 units what is de

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.

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start