Nick and his friends are working on a project and need to write 29 pages altogether if his friends carry writes 14 pages and his friend jerry writes 12 pages how many pages are are left for nick to write

Answer this question only if you know the answer! 30 points and

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.

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.