Maxine gives each of her 4 cousins 3 cookies per day out of a box of cookies which has 120 cookies. identify the rate of change (slope) and the initial amount (y-intercept). write and equation.

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.