For the circuit shown in Figure $2,$

a$)$ Make a series of source transformations to find the Norton's equivalent circuit between terminals a and $b.$

b$)$ Find the Thevenin's equivalent circuit from the Norton's equivalent circuit

c$)$ If the variable resistor $R_L$ is adjusted for maximum power transfer to $R_L,$ what is the value of Ro$.$

d$)$ Find the maximum power that can be delivered to Ro$.$

Please show me the steps in pure detail, the whys and the hows would be amazing to know, thank you so much for your time