Pls I need clear workings. (A.)evaluate without tables

1.)3log2+log20-log1.6

2.)log√2/log9

3.)log0.2/log25

4.)if logx-log(2x-1)=1,find x?​

*15 pts* the graph of an exponential function of the form y = f(x) = ax passes through the points and the graph lies the x-axis. first line choices: (0, a) (0, 1) (0, 2) (0, -1) second line choices: (1, 0) (1, a) (1, 1) (1, -2) third line choices: above below on the