Log b 18 = logb 2 * 3 * 3
When multiplying logs, they are added together so:
logb 2 * 3 * 3 = logb 2 + logb 3 + logb 3
Logb 2 is given as 0.4307 and logb 3 is 0.6826
Now we have 0.4307 + 0.6826 + 0.6826 = 1.7959
Logb 18 = 1.7959
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