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What is the pattern in the values as the exponents increase?

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.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.