Please help!! In the figure below, the radius of circle P is 10 units. The arc length of ABC is 16pi. What is the arc measure of AC, in degrees?
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Find the domain of the following expression: 1/(√x)-2

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

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?