Help me solve these conversations pls!

v) Convert 800 roubles (P) at a rate of 8P:1 vi) From the above questions calculate the exchange rate between P and $ vii) Convert 1,000 to South Korean Won (W) at an exchange rate of 1,400W: 1 viii) If the South Korean Won UK pound exchange rate changes to 1555W: 1 from 1,400W: 1, has the Won increased or decreased in value? ix) Convert 50 to euros () at an exchange rate of 0.93:1 ..... x) Using the exchange rate in part vand ix calculate the exchange rate between roubles (P) and euros (). xi) If $1.6=E1 what is the value of $1