Answer:
B) 12yd, 24yd, 32yd is the answer
8 dishes/2 minutes
4 dishes a minute
50 dishes/4
12 and a half minutes
4.2³ = 74.088. If the 4.2 is accurate, this is actually not an estimate but an exact answer. You can of course round it to 74, then it becomes an estimate.
