After suffering two years of staggering hyperinflation, the african nation of zimbabwe officially abandoned its currency, the zimbabwean dollar, in april 2009 and made the u. s. dollar its official currency. someone in zimbabwe would have been willing to accept u. s. dollars in exchange for goods and services becausea. the exchange rate was low. b. u. s. dollars had a lower price level. c. it was too expensive to keep producing a local currency.

Bakery has bought 250 pounds of muffin dough. they want to make waffles or muffins in half-dozen packs out of it. half a dozen of muffins requires 1 lb of dough and a pack of waffles uses 3/4 lb of dough. it take bakers 6 minutes to make a half-dozen of waffles and 3 minutes to make a half-dozen of muffins. their profit will be $1.50 on each pack of waffles and $2.00 on each pack of muffins. how many of each should they make to maximize profit, if they have just 20 hours to do everything?

Which of these is an example of innovation?

Abond purchased for $950 was sold for $980 after one year. the interest received during the year is $25. the bond's yield is: