Between what pair of numbers is the product of 289 and 7

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]

Fiona has to plot a histogram of the given data

Write 5 in the form of a/b using integers to show it as a rational number