16)Your friend says he is going to Hong Kong, and is very excited because "the dollar is worth almost 8 times more in Hong Kong than the US" (1USD = 7.8 Hong Kong dollars).His vacation therefore should be "super cheap" and he is planning a major shopping spree. Why is he totally incorrect?

17)Your sister in law wants to invest his money in a bond in Russia, because the interest rate she can get is over 8% compared to 2% or less in the US.

What things does she need to worry about that might make her investment not as profitable as she hopes?

18) what probably happened that a government decided it needed to print the below banknote?

?