1. A certain junk bond trader purchased 670 shares of stock at 9.34. When she sold her shares, the stock sold for 6.45. What did she pay for the stock? How much money did she receive when she sold...

1. A certain junk bond trader purchased 670 shares of stock at 9.34. When she sold her shares, the stock sold for 6.45. What did she pay for the stock? How much money did she receive when she sold this stock? How much did she lose or gain? Represent the loss or gain as a signed number.

2. Which continent has a low point that is approximately 10 times the low point of South America?

3. Which continent has a high point that is approximately twice the absolute value of the lowest point?