Consider the two-station line below. The first machine takes 15 mins and the second 12 mins per job and both have SCV=1. The first machine can always pull in material, and the second machine can always push material to finished goods. Between the two machines is a buffer that can hold at most 4 jobs. Processing times are exponential. Infinite raw materials. What is the throughput (in units per hour) of the line? Please approximate to two decimal points in your response below and upload a file with your calculations.