Given circle o below, efg a minor arc , major arc , or a semicircle

Can any one me with the answers to these questions asap?

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer