Which of the following are identities? 1. x2 + 2xy + y2 = (x + y)2
II. 2x + 2 = 2(x + 1)
III. O + a = a

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o

35 ! insert < , > , or = to make the sentence true. 12 __ 25 > =

Edith is shopping for a new leather couch. jordan’s furniture has one that costs $3,000. however, this weekend she can get a 15% discount. how much money will edith save if she buys the couch this weekend? a $15b $2,550c $45,000d $450