On a map there are 3 cm between two cities the actual distance between cities is 45 km what is the scale used for the map

Will mark brainliest. when ∆rst is translated 4 units down, what are the apparent coordinates of t’?

What is the solution of sqrt x+2-15=-3

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]