What is the slope of a line is parallel to y = (1/2)x+ 3?

Asphere has a diameter of 10 in. what is the volume of the sphere?

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?

If a is a nonzero real number then the reciprocal of a is