Part a: solve −np − 80 < 60 for n. show your work. (4 points) part b: solve 2a − 5d = 30 for d. show your work. (6 points)

Landon wrote that 3−2.6=4. which statement about his answer is true?

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?

Ithink i know it but i want to be sure so can you me out ?