小菜一碟 uu们可以看看吗

A VoIP system generates voice data at a rate of 16,000 bits per second. The system puts each 64-byte block of voice data into a separate packet for transmission. The application uses IP, UDP, and its own proprietary protocol which adds 8 bytes of data to each block of voice data.
How long is each IP datagram sent for the application?
b.What is the data rate for IP traffic carried by Link layer (or above Link layer)? Consider all headers and data for IP and above. Do not include Link layer headers in the calculated data rate.

16000/8+64+8