Debra had 5/7 acres of land. She planted 5/6
of this land with corn. How many acres did she plant with corn?

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.