Areflection of triangle abc to triangle a'b'c' is shown. which transformation makes this reflection? a) (x', y') = (y, x) b) (x', y') = (x, -y) c) (x', y') = (-x, y) d) (x', y') = (-x, -y)

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.