This document contains multiple problems and worksheets related to calculating costs, capacity, staffing needs, and budgets. Problem 2 involves calculating total variable costs, fixed costs, incremental costs, and total costs based on different quantities and hypotheses. Problem 3 involves calculating marginal costs, additional physician needs, and cases based on quantity and capacity changes for open heart and other surgeries. The document also includes a salary budget worksheet that calculates FTE rates, salary increases, and total salary budgets for multiple employees over two fiscal years.