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What is the distance between (–2 1/2,-3) and (1, –3)?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.