A woodworking artist makes two types of carvings:type x and type y. He spends 3 hours making each type X carving and 2 hours making each type Y carving, and he can spend up to 36 hours each week making carvings. His materials cost him $4 each type X carving and $5 for each type Y carving, and he must keep his weekly cost for materials to $100 or less. If x is the number of type X carvings he makes in a week nd y is the number of type Y carvings he makes in a week and y is the number of type Y carvings he makes in a week, which of the following systems of inequalities models this situation?

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