Wireshark I/O Graph Help

I/O Graph Image:

https://imgur.com/a/2sz6rvh

If you need additional pictures just let me know. If you could please explain how you got each answer so I can better understand how to read the graph properly, thank you.

1. What is the rough data rate in the download direction in packets/second and bytes/second once the TCP connection is running well?

2. What is the rough data rate in the upload direction in packets/second and bytes/second due to the ACK packets?

3. What percentage of this download rate is content? Show your calculation. To find out, look at a typical download packet; there should be many similar, large download packets. You can see how long it is and how many bytes of TCP payload it contains.