Answer:
$1.86 for 10 oz is a better buy by a very small amount.
Explanation:
To answer the question, we find the unit rates of both boxes.
$1.86 for 10 oz:
unit rate = $1.86 / 10 oz = $0.186/oz
$2.61 for 14 oz:
unit rate = $2.61 / 14 oz = $0.18642857142.../oz
$1.86 for 10 oz is a better buy by a very small amount.