12. After spending a week in Moscow you get an email from your friend in Japan. He can get you a really good deal on a plane ticket and wants you to meet him in Tokyo next week to continue your post-graduation celebratory trip. You have 450,000 rubles left in your money pouch. In preparation for the trip you want to exchange your Russian rubles for Japanese yen so you get the following quotes

Spot rate on the rubles/dollar cross rate Rbl 35/$

Spot rate on the yen/dollar cross rate 75/$

a. What is the Russian ruble/yen cross rate? b. How many yen will you obtain for your rubles?