X Times 22.77 Divided by 8/10 = 1000 what is the value of X​

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]

With number 11 ( show how you got the answer)

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.