In the open-economy macroeconomic model, other things the same, which of the following combinations make the exchange rate fall?
a. u. s. investment demand falls and foreign demand for u. s. goods falls
b. u. s. investment demand falls and foreign demand for u. s. goods rises
c. u. s. investment demand rises and foreign demand for u. s. goods falls
d. u. s. investment demand rises and foreign demand for u. s. goods rises

The correct answer is option  A.

Explanation:

When there is an decline in the investment demand less money will be demanded domestically in U.S.

When people from foreign nations buy goods from U.S, they pay in dollars. So, in order to pay they demand U.S dollars. A fall in the demand for U.S goods in the international market will further lead to a decline in the demand for U.S dollars by the foreign consumers.

A decline in the demand for currency will lead to fall in the exchange rate.

answer; radioactive decay)

the correct answer is:

it required the president to inform congress within forty-eight hours of any new troop commitment.

the war powers resolution (1973) is a federal law designed to limit the u.s. president’s ability to initiate or intensify military actions abroad without the approval of the congress.

it establishes that the president can send armed forces into action abroad only by declaration of war by congress, statutory authorization, or in case of a national emergency created by attack upon the united states, its territories or possessions, or its armed forces.

it requires the president to notify congress within 48 hours of sending armed forces to military action.