please explain how to get part b and c

The following payoff table provides profits based on various possible decision alternatives and various levels of demand at Robert Klassan's print shop Demand Decision Low High Alternative 1 $10,000 $30,000 Alternative 2 $4,000 $38,000 Alternative 3 - $1,500 $48,000 The probability of low demand is 0.35, whereas the probability of high demand is 0,65 a) The alternative that provides Robert the greatest expected monetary value (EMV) is Alternative 3 The EMV for this decision is $ 30,675 (enter your answer as a whole number). b) The expected value with perfect information (EVP) - $ 34,700 (enter your answer as a whole number). c) The expected value of perfect information (EVP) for Robert = $ 4,025 enter your answer as a whole number)