Find info not obvious from data and graph it in a line, pie and bar graph

I need to analyze data (portion of the retirement investment portfolio) and graph the not so obvious info (such as total value) in a bar, pie, and line graph. I need to do this in excel and come up with formulas, name for the graphs, Y' and X's. What information should I be looking for as an investor (that's meaningful and not obvious)? Which info is suitable with which graph? Data is as follows: Stock # Shares 9/30/96 10/31/96 11/30/96 12/31/96 1/31/97 2/28/97 CHV 65 62.63 65.75 67.00 65.00 63.38 64.50 GE 38 91.00 96.75 ... click for more

Working with recursions.

The sequence of catalan numbers, for each integer n > or equal to 1. Show that the sequence satisfies the recurrence relation Csubk= 4k-2/k+1 for all integers k>or equal to 2.

Working with iteration to develop a formula.

A single line divides a plane into two regions. Two lines (by crossing) can divide a plane into four regions, three lines can divide it into seven regions. Let psubn be the max number of regions into which n lines divide a plane where n is a positive integer.

Working with second order linear homogeneous recurrence relations

Suppose a sequence satisfies the given recurrence relation and initial conditions. Find an explicit formula for the sequence s(subk)=-4s(subk-1)-4S(subk-2), for all integers k>or equal to 2 s(sub0)=0,S(sub1)=-1

Methods Of Proof for Mathematical Equations

Can you give a direct proof and an indirect proof of the following? If x is any odd integer and if y is any odd integer, then xy is an odd integer.