Consider a country that is operating under a system of flexible exchange rates. If the central bank in this country imposes an expansionary monetary policy, it would be likely to experience: I. a depreciation of its currency;
II. short-term capital outflows;
III. an appreciation of its currency.

i a depreciation of its currency;

Explanation:

A flexible exchange rate is when exchange rate is determined by the forces of demand and supply.

an expansionary monetary policy is a policy where the monetary authorities increase the money supply in the economy.

If exchange rate is flexible and an expansionary monetary policy is carried out, the supply of money would exceed its demand.  as a result, the value of money would fall. this is known as depreciation

i believe the answer is: streets and roads

public property refers to the property that can be used by all legal citizens in a certain country. the public property was created and maintain using the government budget that allocated specifically for it. the budget itself come from the citizen's income tax payment.

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.