Evaluate |–8| + |b| + a if a = 0 and b = 12.

A. -4
B. 4
C. 12
D. 20

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

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]

Me with this one question, and i'll upvote the brainliest answer