One number is four times another number. the sum of their reciprocals is 1/4 . what are the numbers?

no, the numbers are not 4/5 and 16/5

Describe the domain and range of y=2(3)^x-2+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?

Answer! if you don’t mind, can you explain