Consider the three stocks in the following table. Pt represents price at time t, and Qt represents shares outstanding at time t. Stock C splits two for one in the last period. Q0 P1 Q1 P2 Q2 A 140 145 145 145 145 145 B 135 290 130 290 130 290 C 270 290 280 290 145 580 Calculate the first-period rates of return on the following indexes of the three stocks (t = 0 to t = 1): (Do not round intermediate calculations. Round your answers to 2 decimal places.) a. A market-value-weighted index. Rate of return b. An equally weighted index. Rate of return % %