1 When there would be falling Russian currency, then these foreign banks which are operating in Russia will be having a higher amount of Russian currency receivables after being adjusted for currency appreciation. So these foreign banks, after being adjusted for appreciation in their domestic currency and depreciation in the currency of Russia, will be leading to higher receivables and lower payables in Russian currency and it will be increasing the overall profits of the foreign banks.

Foreign banks operating in Russia will also be gaining in form of lower oil prices because it will mean that there would be a lower cost of operation due to a lower oil prices, because lower oil prices will mean there would be a significant depreciation in inflation in the country and the depreciation in inflation in the country will lead to cost cutting in form of operating in Russia so their variable cost are going to decrease when the oil prices are going to decrease, so it will be benefiting them in form of higher profits.

2 

Present Value of the Future cash payments

Present Value of the Future cash payments = CF2/(1 + r)^2 + CF4/(1 + r)^4

= $150,000/(1 + 0.08)^2 + $150,000/(1 + 0.08)^4

= [$150,000 / 1.166400] + [$150,000 / 1.3604890]

= $128,600.82 + $110,254.48

= $238,855.30

YES. The Ayman should accept the offer, since the Present value of all the payment is $238,855.30

Hence, the answer will be (d). Yes because the PV of all the payment is $238,855.30