A fabric cutting machine processes the cutting task. The fabrics need to be layered prior to each cutting task, and it takes 5 seconds to lay out one piece of fabric. After the fabrics are layered, the cutting begins, which takes on average 2.5 minutes for each batch. The batch size for each cutting task 30 layers/batch. Given this operating process, what is the capacity of the cutting machine (in layers per minute) (round to the nearest integer)