This is the question regarding Labor Income Taxation. Could you check my answer from (1) to (2) and give me the answer from (3) to (9)? I would appreciate it if you could give me the graph illustration and explanation each.

Note: I know this utility function is quasi-linear so income effect should be all 0 (only focus on substitution effect).

Assume that individuals have the same utility function over consumption and labor given by U(c, l) = c + 610g(10 l) where c represents consumption, l represents hours of labor, and 6 is a given positive parameter. Assume that the only income individuals have comes from labor and that the hourly wage rate is given by w.