How long does it take to send a 7 MiB file from Host A to Host B over a circuit-switched network, assuming:

• Total link transmission rate = 30.8 Gbps.
• Network is FDM, with 2 permitted users, each with an equal bandwidth share.
• A link connection requires a setup time of 67.7 ms.

Your answer should be in miliseconds (ms) with one decimal place, and without the unit (e.g. "140.6" without the quotes)

The Answer should be 71.5, please show details to get to answer