Math Help - LaTeX formatting

I'm completely new to LaTeX and need some help with this formatting. I would like to format a document like the one attached. Few quick questions, is that a standard font in latex, how do I adjust the margins? Also how do I make the math font larger. When I input it into latex, e.g. integrals or fractions, they are quite small. And how do I indent text? Thanks

You should not need to change the font, the default with most document types will be Roman, which the above is. The equations are set either in the equationarray environment or built as an array in a display equation and allighnment will usually take care of itself.

Look at the samples on the Art of Problem Solving web site.

CB