Answer:
where are the answer choices
Step-by-step explanation:
The answer is A. If they buy 16 masks and 12 noses then that is 28.
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2. Angle Addition Postulate as they are adding both angles
3. 60 + 40 = m <ABC because it's a substitution
4. 100 = m <ABC as it is simplified already
5. Definition of obtuse angle
6.14, and 9.21 are two decimals equivalent.