how many positive integers less than 100 have the property that the square of the sum of the digits is greater than the number itself?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of 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]

Find the nonpermissible replacement for binthis expression.b2/5b +5