Ski rental A person goes to a ski resort for a long vacation. Two choices everyday: Rent a ski:$1 per day. ▣Buy a ski::$B once. An unknown factor:the number k of remaining days for ski in this season. When snow melts,the ski resort closes.Ski rental ◼ A person goes to a ski resort for a long vacation. ◼ Two choices everyday: ❑ Rent a ski: $1 per day. ❑ Buy a ski: $𝐵 once. ◼ An unknown factor: the number 𝑘 of remaining days for ski in this season. ❑ When snow melts, the ski resort closes. 4