Making a formula for the days remaining, but when the task is done, it should say 'finished'.

1yr ⋅ ⋅

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Saw this from my Grade 4 Math book. Can't figure out the right answer lol. What's the correct answer?

2yr ⋅

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Did I answer these correctly?

1yr ⋅

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Are these values the same? What does the 'E' mean?

1yr ⋅

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