David wants to save for a plane ticket to go snowboarding in Colorado. The ticket costs $395 for a round trip. If he starts saving $20 a week, in how many weeks will he have enough money to buy a ticket.

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)