(High points) please solve with explanation.

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

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.

How do i solve uniform motion problems?