Definition: In this task you will be given a list of lists, of numbers. For every inner list, you should multiply every number in that list and put the results in your answer. The output should be a list of numbers with the same length as the number of the lists in the input list.
Input: [[-7, -29], [-12, -25, 18], [-48, -38, -13, 50], [-24, -24, 29, -48]]

[203, 5400, -1185600, -801792]