What is the greatest common factor of the terms in the expression 21x-18x+28xy?

a.3

b.3x

c. x

d. xy

What values of data might affect the statistical measures of spread and center

What is the pattern in the values as the exponents increase?

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