Since the Heckscher-Ohlin model involves multiple inputs, such as land, labor and capital, with various suitabilities for different tasks, the production possibility curve (PPC) is A. curved because production costs are decreasing. B. straight because production costs are increasing. C. straight because production costs are constant. D. curved because production costs are constant. E. curved because production costs are increasing.

Miller company’s most recent contribution format income statement is shown below: total per unit sales (20,000 units) $300,000 $15.00 variable expenses 180,000 9.00 contribution margin 120,000 $6.00 fixed expenses 70,000 net operating income $ 50,000 required: prepare a new contribution format income statement under each of the following conditions (consider each case independently): (do not round intermediate calculations. round your "per unit" answers to 2 decimal places.) 1. the number of units sold increases by 15%.