Suppose Robbins Co. stock is selling for $41 per share. Puts and calls with an exercise price of $40 are available on Robbins. The risk risk-free rate is 8%. The time to maturity of the puts and calls is 6 months (i.e., t = .50). The volatility of Robbins stock returns is 30% (i.e., = .30). Use the Black-Scholes equation to determine the prices of the call and put.