A nut-raisin mix costs $5.26 per pound. Rashid buys 15.5 pounds of the mix for a party. Rashid’s estimated cost of the nut-raisin mix is

Multiply the price per pound by the number of pounds: $5.26 × 15.5 = $81.53. Rounded to the nearest ten dollars, that is about $80, so the estimated cost is choice D, $80.

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