Why do poeple like to scam people

(this is for 1 person mostly)

Bond j has a coupon rate of 6 percent and bond k has a coupon rate of 12 percent. both bonds have 14 years to maturity, make semiannual payments, and have a ytm of 9 percent. a. if interest rates suddenly rise by 2 percent, what is the percentage price change of these bonds?

Barney corporation recognized a $100 million preferred stock balance on 12/31/2019. on january 1, 2020, barney issued $10 million in preferred dividends. on the same date, barney raised an additional $20 million via a new issuance of preferred stock. on december 31, 2020, the market value of the original amount of preferred shares rose $5 million. under us gaap, the 12/31/2020 year ending preferred stock balance is:

Discuss the positive and negative effects of the north american free trade agreement on the united states. support your conclusions with examples and evidence from the lesson.