Larbara burs 50 shares of DEM at $26.00 a share and 220 shares of COp at $41.00 a shore. She buys on margin and the broker charges interest of 12 percent on the en. 0. If the margin requirement is 45 percent, what is the maximum amount she can borrow? Round your answer to the nearest cent. b. If she buys the stocks using the borrowed money and holds the securities for a year, how much interest must she pay? pound your answer to the nearest cent. 5 C. If after a year she seak DEM for $21.00 a shore and GOP for $30,00 a share, how much did she lose on her investment? Use a minus sign to enter the amount as a negative value. Round your anawer to the nearest cent. s What is the percentage loss on the hunds she invested if the interest porment is included in the calculation? Use a minus sign to enter the amount as a negative volue. found your answer to two decimal places