Me! you have a minimum time of 20 minutes. simplify: (x + y)(x + y) a. x2 + 2xy + y2 b. x2 + y2 c. 2x2 + 2xy + 2y2 d. x2 – y which one is the answer?

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

How can constraints be used to model a real-world situation?