Is it possible to have an expression that uses brackets without using any parentheses? explain.

Which fraction below is equivalent to 10/12?

Which of the following best describes the delian problem?

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.