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This book presents and discusses the role mathematics plays with regards to various social, business and biological issues. Topics discussed include the coalition formation process; substitutable and perishable inventory with partial backlogging; contractual stability and competitive equilibrium in a pure exchange economy; a heterogeneous foraging swarm model inspired by honeybee behavior and a cautionary tale of caterpillars and selectional interference.

Jealousy. Envy. Loneliness. We've all felt these emotions. In this story of frustration and friendship, teen authors Jordan, Rico, and Brandon share the silly things we do when feeling bad about ourselves. Bobby, the editor of the school newspaper at REACH Middle School, is jealous of a popular threesome. His plan: break up the trio. Does it work?

The authors of this story are part of an innovative program run by Reach Incorporated. Reach develops grade-level readers and capable leaders by preparing teens to serve as tutors and role models for younger students, resulting in improved...