The document contains calculations to solve multiple quantitative problems. It first calculates the present value of an asset generating $150,000 income annually for 5 years with a 9% opportunity cost as $583,448. It then provides revenue, cost, marginal benefit, and marginal cost equations and calculates the net for quantities of 1 and 5. Finally, it presents the formula to calculate the present value of a firm with current profits of $550,000 growing at 5% annually with an 8% opportunity cost.