What does "ACK" mean when used on a message board?

What does "HTH" mean in an email or on a message board?

When posting in a chat room or message board, you should be ______.

There are many differences between online postings and face-to-face communication. What one critical difference should users remember?

To help establish your online identity, what should you do?

In How many ways can u choose 3 white balls and 4 red balls from a bag containing 5 red and 4 white

How will u invite atleast one person from a group of 10 persons

What is the average weight of the class-if the average weight of boys in the class is 50 and average weight of girls in the class is 40. The ratio of number of boys to girls in 2:3

What is the maximum area of a square that can be inscribed inside a circle of radius 5 units?

Find the next term in the series 2,9,28,65....find the next term