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Jessica knows Swahili and Farsi, Judith knows Italian and Polish, Jane knows Dutch and Swahili, and Ariana knows Farsi and Italian. If Swahili is easier than Farsi, Polish is harder than Italian,...

Our schools want to send brochures advertising our program to different kinds of parents. How many brochures do we need to reach all people using the following statistics on parents? * 10 scientists;...

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