Economics question! please help?

[caspar99]

1. Which of the following statements is true about the balance of payment?
a.Current account debit must equal current account credit
b. visibles must equal invisibles
c.total debits must equal total credits
d. desired payments must equal actual payments

2. the 10 % surtax on personal income taxes passed by congress raised the tax rate in each bracket by 10 % itself. This meant that the income tax
a. became slightly more progressive than before
b. became slightly close to proportional than before
c. required an equal absolute increase from everyone
d. even affected those with no taxable income

3. The principle of comparative advantage indicates that
a.free trade is invariably best
b.free trade is hardly ever best
c.free trade is better than some trade
d.trade with mutual gain is possible

4. From the point of view of the domestic standard of living, a country should
a. welcome cheap imports
b.try to expand exports
c. impose tariffs to keep out foreign competition
d. try to be self-sufficient

5. Increased preferences of Philippine consumers for Japanese cars would
a. shift the supply of dollars curve to the left and lead to an appreciation to the value of yen
b. shift the demand for dollars curve to the left and lead to a depreciation in the value of the yen
c. shift the demand for dollars curve to the right and lead to an appropriation in the value of the yen
d. shift the supply of dollars curve to the right and lead to depreciation to the value of dollar

guys need your help. thanks! :)