The startup of iFly – an air taxi service allowing corporate travelers to fly in small planes between local airports – was a result of a change in which factor?

An agency by ratification occurs when the principal ________

A) accepts an unauthorized act created by an unauthorized agent B) accepts an authorized act created by an authorized agent C) creates the appearance of an agency that in actuality does not exist D) accepts an act carried out under the implied authority of an agent

________ are at the endpoints of the constraint line segment that the objective function parallels

Fill in the blank with correct word.