If y varies inversely as x, and y=2 as x=3 find y for the x- value of 1.
answers: a) 6, b) 5, c) 4, d) 3

What signals you that factoring by grouping is the best method to use when factoring a problem?

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]