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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.

If a is a nonzero real number then the reciprocal of a is

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re