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: [[48, -11], [43, -20, 39], [49, 6, -25, 30], [40, 20, -27], [9, 37, -12, 18]]

[-528, -33540, -220500, -21600, -71928]