The correct answer is:
54, 60, 66, 72, 78, 84, 90, 96.
Step-by-step explanation:
Multiples of a number can be found by counting by that number. If we start counting by 6, the largest number we get before 50 is 48:
6, 12, 18, 24, 30, 36, 42, 48
From this point, counting by 6, we have:
54, 60, 66, 72, 78, 84, 90, 96