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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.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

In the diagram, gef and hef are congruent. what is the value of x