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Similar problem was solved recently by me at this link
https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1078355.html
https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1078355.html
Consider it as a sample.
Read it attentively.
Then solve your problem by the same method by substituting your data.
In this way you will learn something useful.
Prove that you are able to understand what was explained to you once.
Good luck !!