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A common food us found to contain .00125% of iron. The serving size is 87.0 grams. How many milligrams of iron is in one serving?

A common food us found to contain .00125% of iron. The serving size is 87.0 grams. How many milligrams of iron is in one serving?

By installing a$120 thermostat that reduces the temperature setting at night, a family hopes to cut its annual bill for heating by 9% and thereby recover the cost of the thermostat in fuel savings after 2 years. What was the family's annual fuel bill before installing the thermostat?

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