Write an algebraic expression that is represented by the model

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]

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Me asap! what is the slope of this line? enter your answer in the box.