If you can tell me the answer please do i need help besties

Which ratio is equivalent to 10: 85

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.

43lbs of tomatos cost $387. how much would 41lbs cost