Urn i contains 2 red balls and 2 white balls. urn ii contains 13 white balls. a ball is selected at random from urn i and placed in urn ii. then a ball is selected at random from urn ii. what is the probability that the second ball is white?

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account