I would say the answer is b, because it is a rhombus gape and all sides are congruent and there are 4 sides
C) 50 randomly selected people leaving the movie teather
D, because two negative signs next to each other means to add so its pretty much 7/8+1/8 which equals 8/8 which also equals 1
D I’m 50% sure I searched it up 2
