Assignment:
A wall is to be constructed around 3 sides of a rectangle of area 220 square yards, with a fence running the length of one side. The construction cost for the wall is $15 per linear yard, and $9 per linear yard for the fence.
(a) Express the width, w of the rectangle as a function of the length, x, of the fence.
w(x)=
b) Determine a model for the cost, C, of the total project as a function of the length, x, of the fence.
c(x)=
Provide complete and step by step solution for the question and show calculations and use formulas.