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.
[[4, 25, -21, 9], [28, -20, -22, -37], [-31, 37, 29], [-30, -46, 2], [48, 43, -45, -31, -41], [-39, 15], [-47, -37], [-42, 17, -43, -25, -33]]