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: [[5, 8, 15, 20], [-1, -22, 21], [10, -47, -20, 23], [-23, 2, 37, 34], [-43, -21, -1, -9, -23], [45, 43, -46], [-50, -32, 32, 15]]

[12000, 462, 216200, -57868, -186921, -89010, 768000]