Given the following relationships, identify the domain and range of each.

Relationship A: The perimeter of a regular hexagon is 54 inches or less.  Identify the set to describe l, the length of each side of the hexagon and p, the perimeter of the hexagon.

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{0 < p ≤ 54}

Relationship B: A restaurant charges $10 per pizza and the Stephens family orders at least 3 pizzas per week. Identify the set to describe t, the total amount the family spends on pizza each week and p, the number of pizzas that they order.

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t = {30, 40, 50,...}, p = {3, 4, 5,...}

Relationship C: The number of eggs in n cartons can be expressed by the function e = 12n. Identify the domain and range of this function.

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Domain: {0, 1, 2, 3,...}, Range: {0, 12, 24, 36,...}