Nine People (Ann, Ben, Cal, Dot, Ed, Fran, Gail, Hal

question 5

Short Answer

nine people (Ann, Ben, Cal, Dot, Ed, Fran, Gail, Hal, and Ida) are in a room. Five of them
stand in a row for a picture.
-In how many ways can this be done if Ann and Ben are in the picture, but not standing next to each other?

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Definitions:

Carbon Cycle

The natural process of carbon being exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth, essential for life.

Phosphorus Cycle

The cycle that explains how phosphorus circulates through the Earth's crust, water bodies, and ecosystems.

GIS

Geographic Information System, a framework for gathering, managing, and analyzing spatial and geographic data.