<p>I can only help you with your first couple of questions, mainly because I'm just starting colleg emyself ( I'm a freshman). At my school econ majors are only required to take the first 3 calc courses (one of which is basic, HS calc).</p>
<p>Before you declare an econ major take the principles courses and find out if its what you want to do. If you like it enough youl get yourself through the math. It's all a matter of giving yourself motivation and working through it.</p>
<p>Calc certainly and intro to econ possibly fulfill certain general education requirements at your college, so you won't be wasting credits even if you decide not to major in econ :)</p>