What is the value of side b?
A 20
B 15
C 10
D 5

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]

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

X2 + y 2 = 36 x + y = 6 solve the system of equations.