Problem Solving Answer

                                  The answer shall be told today? Tomorrow ha ha. Ok Today.
                                   Step 1: 169 divided by 13 because since we have 13 units we want to find out how many units are there in one of the box. 169 / 13 = 13
                    Step 2: 13 * 10 to get 10 unit.              13 * 10 = 130


That is the answer bye!