Answer
$-16^oF=-26.67^oC.$
Work Step by Step
To change from degrees Fahrenheit to degrees Celsius, we use the formula
$$C=\frac{5}{9}(F-32^o)=\frac{5}{9}(-16^o-32^o)=\frac{5}{9}\times (-48)=-26.67^o$$
that is $-16^oF=-26.67^oC.$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.