Business Harder Than Undeclared?

<p>Hi! I heard from so many people that it's harder to get into a business school than it is to get into the general school. For example, it's harder to get into Boston University's business program than it is to get into the general school. How much harder is it to get into the business school? If I didn't do as well as I could in my math courses in my high school course, how much will that hurt my chances?? Could writing a killer essay and getting really good recommendation letters help?? </p>

<p>I'm so sorry for all the questions but I'm really worried. Thanks in advance!</p>