Answer :
The amount the investment worth after 20 years will be $810.45
Compound interest
The formula for calculating the compound interest is expressed as;
A = P(1+r/n)^nt
Given the following parameters
P = $300
rate r = 5% = 0.05
time t = 20 years
Substitute
A =300(1+0.05/4)^4(20)
A = 300(1+0.0125)^80
A = 810.45
Hence the amount the investment worth after 20 years will be $810.45
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