Solve each quadratic equation. show your work.
14. (2x – 1)(x + 7) = 0

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)