1.) An American tourist changed US $925 into Trinidad and Tobago currency at the exchange rate US $1.00= TT $ 4.25 a.) Calculate the amount of TT dollars he received.
b.) The tourist spent TT $ 1806.25 and changed the remaining TT dollars into American currency at the same exchange rate. Calculate the amount of US dollars he received.

2.) A bank gives two dollars and seventy-five cents in Eastern Caribbean currency (EC $2.75) for one United states dollar (US$ 1.00).
Given that 1% tax is charged on all foreign exchange transaction, calculate the amount, in E. C. currency, which a tourist receives in exchange for US $1200.00.

3.) Given that TT $1.00= EC $ 1.12
And TT $ 4.25= US $1.00

Convert (a.) TT $55.00 to EC $
(b.) EC $850.00 to US $

4.) a.) A tourist changed US $ 1200 to Trinidad and Tobago currency. Calculate the amount she received at the exchange rate US $1.00= TT $2.40
b.) Calculate the amount she would receive at the exchange rate US $1.00=TT $ 5.76