What is the value of the expression
x² + 2x - 2xy – 2y + y^2 when x - y = 50 ?

The phrase references available upon request should appear at the __ of your résumé? a. back b. top c. middle d. bottom

How did different parts of the united states feel about slavery

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.