At the original exchange rate an import quota a. creates a surplus in the market for foreign-currency exchange, so the exchange rate rises. b. creates a surplus in the market for foreign-currency exchange, so the exchange rate falls. c. creates a shortage in the market for foreign-currency exchange, so the exchange rate rises. d. creates a shortage in the market for foreign-currency exchange, so the exchange rate falls.

his average speed in km per hour is ≈ 55.4 km/h and about 15.4 m/s.

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy

answer(d) encourage cooperation by improving the chances of mutually agreeable transactions;