The Dispatch Tool Works spends $18000 to produce 110 parts achieving a marginal cost of $150 . Find the linear cost function

I should know this. This is exactly what I just tested on. Noticed I said "should know this". Doesn't mean I do :D
Use your book, genius.
With love, the troll c:

In how many different ways can a panel of 12 jurors and 2 alternates be chosen from a group of 15 prospective jurors?