Final answer:
Seablue will pay 7000 dollars on a day when no jeans are made, as this is the fixed cost in their cost model equation.
Step-by-step explanation:
The question asks how much it would cost Seablue if no jeans were made on a given day. To answer this, we need to calculate the cost for making x pairs of jeans when x is zero.
The cost model given is C(x)=7000+6x+12x⁰.⁷ dollars. If no jeans are made, which means x=0, we substitute 0 for x in the cost model equation.
So, the cost when no jeans are made is C(0)=7000+6(0)+12(0)⁰.⁷ = 7000 dollars. Therefore, it costs Seablue 7000 dollars if no jeans were produced on a given day, which represents the fixed costs of the company.