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, -20, 50], [-27, -42, 29, 19, 21], [27, -18, -34, 21], [-40, -34, -28, 32, 15], [-21, -16, -36, -27, -32], [33, -25, -8], [-16, -47, 42, -7], [9, 4, -19], [-48, -12, -12]]