Helppp I don’t understand

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.

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

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