Question 1208672
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Pay attention to what you are posting before you post it.<br>
log(3) is 0.4771, not 0.771.<br>
Then, using basic rules for logarithms....<br>
log(0.75) = log(3/4) = log(3) - log(4)<br>
log(81) = log(3^4) = 4*log(3)<br>
You can do the arithmetic to get the answers.<br>