List the variables and constants in each expression. 3x+6

What is the missing constant term in the perfect square that starts with x^2 -20x

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

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10