How can pancakes be dry?

One country has a comparative advantage over another country in the production of a good if ithas a curved production possibilities curve and the other country has a linear production possibilities curve.has lower fixed costs than the other country. has a linear production possibilities curve and the other country has a curved production possibilities curve.is a lower opportunity cost producer of the good.

Telecom co. enters into a two-year contract with a customer to provide wireless service (voice and data) for $40 per month. to induce customers, telecom co. provides a free phone. telecom co. normally sells the phone on a stand-alone basis for $200. telecom co. also charges the customer a one-time activation fee of $35.which of the following is true? a) there are two distinct performance obligations: the voice service and the data service b) the free phone constitutes as a marketing expense c) the activation fee is a separate performance obligationd) there are two distinct performance obligations: the wireless services and the phone

How do you know if two line segments are perpendicular?