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You are constructing a railing to place on a ramp for your handicapped grandmother. You have been given a 12-ft rail and 5 posts to support the railing. The posts are equally spaced under the rail...

A manufacturing company produces two types of detergent, A and B, from two chemicals, C and D, and a carrier fluid, E. The production of 1 L of A requires 0.5 L of C, 0.1 L of D, and 0.4 L of E. Similarly,...

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