Simplify 1/2+1/4+1/8
Simplify 1/2+2/3+3/4

A50% increase followed by 33 1/2% decrease

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.

Which two undefined geometric terms always describe figures with no beginning or end?