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: [[-20, -22, 6, 42], [28, 28, -34, -30], [29, -42, 30]]

[110880, 799680, -36540]