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a=100, r=(100+8=108 108÷100= 1.08) r=1.08
ar^10=100×(1.08)^10 = £215.89
ar^n=300
100×(1.08)^n=300
(100×(1.08)^n)÷100=300÷100
1.08^n= 3
nlog1.08=log3
(n log 1.08)÷log1.08=n
Log3 ÷log 1.08= 14.27
n =15years
Frezre answered the question on October 21, 2018 at 15:02
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