In the following earliest start time (est) graph, assume each unit of time is an hour. How many hours will it take until task f can be started?.

Of four agents alpha, beta, gamma anddelta, three have to be sent together on amission. if alpha and beta cannot gotogether, beta and gamma cannot go togetherand gamma and delta cannot go together,then which of the following holds? 1. any three agents can be sent.2. alpha, delta and any one out of beta andv gamma can be sent.3. beta, gamma and any one out of alphaand delta can be sent.4. the mission is impossible.

An ancient marble statue is moved from a rural location to a highly polluted city explain how the move might affect the statue and why you think so

The tendency to seek out individuals who represent the same level of physical attractiveness as ourselves is explained as