Identify the terms and like terms in the expression
 Q + 4 + 2t - 9+ +
 Which statements are true? Check all that apply
 The expression contains seven terms.
 The terms in the expression are a?, 4,21, 9, and .
 The constants, 4 and 9, are like terms.
 Like terms have the same variables to the same
 powers
 9, 21, and I are variables, so they are like terms.
 2t and t are like terms.