Which would you need in the event of professional mishaps?

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 measure of an angle is 117°. what is the measure of a supplementary angle?

How can you check that you have correctly converted frequencies to relative frequencies?