Ok, so you see here, the demain is described as, to which to point does the x-axis change throught the graph, meaning here, you graph reaches from x = -4, to x = 2, that means that the domain is:
The measure will be 122 cause all you have to do is subtract 180 from 58 and you will get your answer cause a supplementary angle is an obtuse so thats 180 so you would have to subtract then two amd you will get your answer !!