A cord is cut into two pieces of different lengths. The sum of the two lengths is 14 centimeters, and the difference between the two lengths is 4 centimeters. Find the lengths of the two pieces of cord.

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Which of the following are accepted without proof in a logical system? check all that apply.

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