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I attached the document with the answers and work with the formulas. Since the formulas and fractions don't work very well with this site (especially the pi symbol, they should fix that).
:)
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docx
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Answer: $30,525.87
Step-by-step explanation:

A = Amount
P = Principal
r = rate
n = number of times it is compounded
t = time

A. Think of it ur walking up the stairs the line flows upward