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.
[[49, 13, -13, 42], [-5, -9, 42], [5, 31, -16, 1], [-38, 2], [-4, 26, -37, -49], [-13, -41, 40, -22], [-10, -35, -49, 24], [3, -45, -15, -48, 36], [0, -17, -17, -45, 42]]