You add all of them together if it’s labeled with a X.
For example, the first X is 1 hour. If it has 2 Xs it would be 2 hours, if no X is shown above, it’s zero hours.
Answer is 12 hours.
Answer:
c
Step-by-step explanation:
very simple it's b. tell me if you need help with anything els
Answer:
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Step-by-step explanation:
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