Write a while loop to calculate the sum of all the numbers the user inputs, until they put in -1. This means you will need to keep asking the user for a number to add to the sum until they put it in -1.

Sample Run:
Put in your number to add: 3
Your sum is 3.
Put in your number to add: 11
Your sum is 14.
Put in your number to add: 15
Your sum is 29.
Put in your number to add: -1

given the options, i would say your best bet is c. the modem supports up to 56 kbps, which is too low for video streaming. dial up modems use actual phone lines, which only can go up to 56 kbps as that's more than sufficient for traditional phone calls. this is also the reason why when a dial-up modem connects, you hear all those sounds. it's literally using the phone line to establish a connection.

the file button then you go to insert tab and click insert hyperlink.

the only way i would see could be an autoclicker type software. but that is very time consuming.