BP and Rosneft $2015.$ BP$($UK$)$ and Rosneft$($Russia$)$ had severed a$$ long$-$term joint venture in$2013,$ with Rosneft buying BP out with $$$$54$ billion in cash and a$20\%$ interest$($equity interest$)$ in Rosneft itself. Rosneft financed a large part of the buyout by borrowing heavily. The following$$ year, in July$2014,$ BP received a dividend on its ownership interest in Rosneft of RUB$24$ billion. But$$ Rosneft's performance had been$$ declining, as was the Russian ruble. The winter of$2014-2015$ in Europe was a relatively mild$$ one, and$$ Europe's purchases of$$ Rosneft's natural gas had fallen as had the price of natural gas.$$ Rosneft's total sales were$$ down, and the ruble had clearly fallen dramatically. And to add debt to$$ injury, Rosneft was due to make a payment of USD$19\mathrm{.}5$ billion in $2015$ on its debt from the BP buyout.

a$.$ Assuming a spot rate of RUB $34\mathrm{.}79$ equals USD $1\mathrm{.}00$ in July$2014,$ how much was the dividend paid to BP in U$.$S$.$ dollars?

b$.$ If Rosneft were to pay the same dividend to BP in July$2015,$ and the spot rate at that time was RUB $75\mathrm{.}03$ equals USD $1\mathrm{.}00,$ what would BP receive in U$.$S$.$ dollars?

c$.$ If the combination of Western sanctions against Russia and lower global oil prices truly sent the Russian economy into$$ recession, and the spot rate was RUB $75\mathrm{.}03$ equals USD $1\mathrm{.}00$ in July$2015,$ what might$$ BP$\text{'}$s dividend be in July$2015?$ Please answer all parts