How is an inversely proportional relationship different from a directly proportional relationship?
(also, check out my other questions, worth 8-50 points! )

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.

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,