It ia 3: 00 pm here, and australia is 13 hours ahead of us. what time is it in australia?

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

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

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.