Need someone to help me please on this .. for my geometry test.

Definition: es. this is a disadvantage or weak point that makes someone or something less effective.

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.

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9