Marcy has a margin account and deposits $$100,000.$ Assume the prevailing margin requirement is $40$ percent, commissions are ignored, and the Mayberry Wine Corporation is selling at $$30$ per share.

How many shares can Marcy purchase using the maximum allowable margin?

What is Lauren$$s profit $($loss$)$ if the price of Gentry$$s stock

a$.$rises to $$35?$

b$.$ falls to $$25?$

$3.$ If the maintenance margin is $30$ percent, to what price can Mayberry Wine fall before Marcy will receive a margin call?