Buying and selling are at the centre of trading strategies that involve buying on one asset while selling another. Investors can also sell an asset in order to cut their losses. They may do this if one of there asset is dropping in value and they don't expect it to rise ever again.
Answer:
study when the hourly rate is below or equal to $20
Explanation:
Cosidering the economic principles of opportnity cost Alexandra will only study that extra time if the loss wages are less or equal to $20 dollars
as a higher hourly rate will make the $20 dollar she consider the change in grade worth it to leave a net loss after considering the implicit cost of the test
1837 Douglass joined the East Baltimore Improvement Society.
my brain went blank thats hard ima ask my teacher.
