Mel bought some shirts for $15 each. joe bought three less than mell for $18 each. together they spent $111. how many shirts did each person buy?

If square root x = -7, then x= -49 true or false

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

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?