Five friends went to a local restaurant and all the buffet at $7.75 each. Two friends had dessert for $2.99 each. The following is their restaurant bill. Does it seem reasonable? Explain. $7.75 + $7.75 + $7.75 + $7.75 + $7.75 + $2.99 + $2.99 = $64.73

Sum is 17 and their difference is 3

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.

Jonathan can throw a baseball 10 1/3 yards. his brother joey can throw a baseball 13 1/2 yards. how much father can joey throw the ball?