Kelly answered 3 items on a test incorrectly . this was 6% of the items. how many items were on the test?

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

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.

Can someone show me step by step how to do this?