A butcher sells chicken, pork, and beef by the pound.
• 1 pound of chicken, 2 pounds of pork, and 4 pounds of beef sell for a total price
of $27.90.
• 2 pounds of chicken, 3 pounds of pork, and 2 pounds of beef sell for a total price
of $26.25.
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4 pounds of chicken, 1 pound of pork, and 3 pounds of beef sell for a total price
of $29.45.
What is the price of pork per pound?