Please show steps and explain so that I will understand it. Thank you

Problem 1 (Single-Period Pricing): Suppose that one day we have 200 units of product to sell. From our understanding of demand conditions, we estimate that Demand =60030 Price. How should we price the product to maximize total revenue derived from our fixed inventory? Is there any opportunity cost (lost revenue)? How much is it? Problem 2 (Multi-Period Pricing): Suppose now that we have 400 units of product to sell over two days, and from our understanding of demand conditions, we estimate that Demand Day 1 Demand =60030 Price Demand Day 2 Demand =50020 Price (a) If we are obliged to charge the same price on both days, what price will maximize total revenue derived from our fixed inventory? (b) If we are free to charge different prices on the two days and there is no demand crossover (for example, you can imagine that the populations to which we sell on the two days are completely separate), what pair of prices will maximize total revenue derived from our fixed inventory