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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.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?