Consider the three stocks in the following table. pt represents price at time t. and Qe represents shares outstanding at time t Stock spits two for one in the last period. Calculate the first-period rates of return on the following indexes of the three stocks ( t : 0 to t i) (Do not round intermediate colculations. Round your answere to 2 decimal places.) a. A market-value weighted index: b. An equally welghted index