You open a brokerige account and purchases 400 shares of Pear inc at $30 per ahare. You boviow $6.000 tiom your beower to he p pay for the purchase wth an interest rate of 93 . a. What is the margn in your account when you fat parchases the thock? d It you ba not receive a magin cal in c above. What pace does Pear need to tat to n oroer to receive a margin car? e. What is the rate of ietun on your investment of year eno