Bone Temps Surf and SCUBA Shop sells 360 surfboards per year. It costs $8 to store one surfboard for a year. Each reorder costs $10, plus an additional $5 for each surfboard ordered.

a)How many times per year should the store order surfboards, and in what lot size, in order to minimize the inventory cost?

b)What would be the minimum and maximum cost?

c)Graph your function.