Answer:
20 hours
Explanation:
20 hours, since you have to find the remaining 80% of her dance time.
I thought of this as follows:
1/5 = 4
2/5 = 8
3/5 = 12
4/5 = 16
5/5 (100% of her dance time!) = 20 hours!
I hope this helped a bunch! Tell me if you need any further assistance...
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