Solve the inequalities: (5-x)(2x+7)(x-3)≤0

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

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?

Solve this problem! extra ! 3025/5.5 = a/90.75