You buy halibut at $25 per pound. One portion of seared halibut requires 6 ounces of halibut. How much does the halibut for one portion cost?

One portion of halibut will cost $9.38

Let understand that 1 pound = 16 ounce

According to the question, 1 pound of halibut cost is at $25

In the same word, 16 ounce of halibut cost also cost $25 because "1 pound = 16 ounce"

It is now stated that one portion of seared halibut requires 6 ounces of halibut.

Now, 6 ounce of halibut will cost: = $9.375 ≅ $9.38

So therefore, one portion of halibut will cost $9.38.

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6 ounces is 3/8 pounds. 3/8 * 25 = $9.38