Please I need help with this home work:

You are provided with the following information on four stocks. Assume that the base year is Dec 2010 and all splits take place on this date. That is after close of trading on December 31, 2010. Stock A and B have a 2 for 1 split at the end of trading on December 31, 2010. Use this information to answer the questions listed below.

	31-Dec-10	31-Dec-10	31-Dec-11	31-Dec-11	31-Dec-10	Dec-11	Split
Stock	Price	Shares	Price	Shares	MV	MV
A	$ 150.00	10,000	$ 50.00	20,000	$1,500,000	$1,000,000	2
B	$ 50.00	4,000	$ 35.00	8,000	$200,000	$280,000	2
C	$ 25.00	15,000	$ 30.00	15,000	$375,000	$450,000	1
D	$ 140.00	20,000	$ 130.00	20,000	$2,800,000	$2,600,000	1

1. Calculate the rate of return on a price weighted average of the four stocks for the period December 31, 2010 to December 31, 2011. Remember to adjust for changes in the divisor.
2. Calculate the rate of return on a market value weighted index of the four stocks for the period December 31, 2010 to December 31, 2011.
3. Calculate the rate of return on an equally weighted index of the four stocks for the period December 31, 2010 to December 31,2011.