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: [[38, -17, 43, -29], [-49, 17], [-50, 43, -43, -29, -48], [-5, 27], [-48, -7]]

[805562, -833, 128690400, -135, 336]