how to solve the following questions 1.Is it possible to determine a real value for 1/3log_2(-8)?

how to solve the following questions

1.Is it possible to determine a real value for 1/3log_2(-8)? explain reasoning

2.Given that x=log_3 5 and y=log_3 2, rewrite log_3 60 in terms of x and y

3.Given that log_2 a+log_2 b=3, calculate all the possible integer values of a, if b is also an integer value. Show your reasoning.

4. Explain why f(x)=log(x+4) has points on its graph with both negative x and y coordinates.