Solve.When a principal P earns an annual interest rate r compounded yearly, the amount A after t years is A = P(1 + r)t. How long will it take $1300 to grow to $4000 at 
compounded annually? Round to the nearest whole year.
A. t ? 15 years
B. t ? 13 years
C. t ? 12 years
D. t ? 11 years
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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