### Molar solubility in different solutions

The solubility product of PbBr2 is 8.9 X 10^(-6). Determine the molar solubility in the following. (a) pure water I got the correct answer of 1.3e-2 M (b) 0.14 M KBr solution I got close to the right anwser with 6.4e-5 but im not sure where i am going wrong. (c) 0.18 M Pb(NO3)2 solution