17. a) You are HANGRY and need food. You stop at Burger King and order 4
whoppers for $3 each, 2 large fries for $2 each, 5 ten piece nuggets for $1
each, and 5 oreo shakes but you are unsure of how much they cost. Your
total was $36. Choose the equation that can be used to determine how
much each shake cost..
5x + 21 = 36
5x + 14 = 36
OB
ОА
5x + 17 = 36
5x + 9 = 36

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.