Help. Please answer this question with working.

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.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Which expression and diagram represent “renee biked four times as far this month as last month”?