A store owner makes two separate orders for three types of auto parts: I, II, and III.

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A store owner makes two separate orders for three types of auto parts: I, II, and III. The numbers of parts ordered are represented by the matrix A.image


For example, Order I called for 4 parts of type II. The cost in dollars of each part can be represented by the matrix B.image


Find AB and interpret the result.

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