Susan went online and discovered that her full monthly retirement benefit at age 67 would be $2,365.00. She needed an additional $1,635 per month to live at 80% of her pre-retirement income. What was Susan's yearly pre-retirement income?

3. find the radius of circle p.4. find y.

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?

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.