There are 260 athletes at a meeting. They each give a Valentine's Day card to everyone else. How many cards were given?

What is the equation of the linear function represented by the table?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

The sum of two numbers is 86, and their difference is 20. find the two numbers