2+ (x + y) = (2 + x) + y is an example of which algebraic property?
distributive property
associative property of addition
commutative property of addition
symmetric property

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2