David went for a hike on Wednesday at camp. The hike took 1 hour and 10 minutes. As soon as he got back, David played volleyball for 1 hour and 45 minutes. It was 8:30 A. M. when David finished playing volleyball. What time did David start his hike? Include A. M. or P. M. in your answer (for example, 11:58 A. M.).

Will give Brainliest :D

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Im literally having a mental breakdown

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.