What is the second term in the Expansion of (x+y)^5

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?

Determine domain and range, largest open interval, and intervals which function is continuous.

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.