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.
[[18, 27, -28], [48, 41, -21], [45, -20, -23], [-29, -37, -16], [34, -19, 38]]