Right now, Alan's mother is 4 times older than he is. In 4 years, she will be 3 times older than he is. How old are Alan and his mother right now?



Second question:

Kim is using a list of his friends' ages. He adds two of his friends' ages and gets 17. He multiplies the ages and gets 72. How old are his two friends?





I would appreciate your help. Thanks.

-- Mary