It is given in the question that,
A mail order company sells boxes of fishing lures for 26.95 per box. a charge of 8.95 is added to orders, regardless of the order size.
Let the cost is represented by C and number of boxes ordered are represented by x.
Total cost is equal to the sum of cost of x boxes ordered and the fixed cost,8.95. THat is
[tex] C(x) = 26.95x+8.95 [/tex]
And that's the required relationship between cost and number of boxes ordered .