There are 12 students in a social studies class. three students will be selected to present their term projects today. in how many different orders can three students be seleected?

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

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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.