Hey guys, I appreciate the help on these logs and I ran into another snag

I tried to use logarit for these but I keep getting the wrong answer

1. 3log(base 2) x + 1/2 log(base 2) x - 3log (base 2) x - 5

2. If log (base b) 3 = 0.56 and log (base b) 2 = 0.36 evaluate...

log (base b) square root of 2/3

3. Solve the equation for x. Give an exact answer and a four place decimal approximation

log (2x+1) = -0.9

4. Solve

log (base 2) x + log (base 2) (3x-2) = 3

PLEASE PLEASE PLEASE HELP!!! Answers are greatly appreciated!