Answer:
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Step-by-step explanation:
Forgive me if I am wrong but it should be 15 hours. If she only studies 1/3 an hour a night it would take 3 1/3 nights so you'd just multiply 3 by 5. If that makes any sense. Sorry not to good at explaining things ;(
Answer:
x=1+4/5 this is the answer i think
You need to graph the equation shown. :)