Pls it an area of basic shape
pls show workings​

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.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

Factor the polynomial by its greatest common monomial factor.