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: [[50, -48, -7, -21, -12], [27, -36, -9], [36, -4], [50, -46, 13], [47, -24]]

[4233600, 8748, -144, -29900, -1128]