THANK YOU GUYS SO MUCH FOR HELPING WITH THE PROBLEMS THAT I RECENTLY POSTED, SO IF IT'S NOT A PROBLEM I'M POSTING A FEW MORE THAT I COULD USE SOME ADVICE ON..

log(x^3) + log (y^2) + log (y) + log(z) + log(z) + log (z)

log_3(x^2 - 3x - 1)= log_3(5)

2log(x) = log(12-2x)

ln(x) - ln(3)= 2ln(x+1)

3ln(x+3) - ln(x-3) =2ln(x-1)

^those are the new problems, please help! thankss!

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Received a take-home test for my college algebra class.. stuck on a word problem..

A radioactive material has a half-life of 3 days. Its level of radioactivity is measured at 1,000,000 units. 10 units is dangerous. How long will it take for the level of radioactivity to decrease to just one unit? To .001 unit?

also..

ln(2x/5- 3)= ln(2 + x/3)

one more..

A pnd begins to develp a cover of lily pads. The number of lily pads doubles every 3 days. after 49 days, the pond is completely covered. How long before the pond is one quarter covered? Assume the lily pads are all the same size.

any help would be wonderful!