Answer:
d) economies of scale result from decline in the average cost of production per unit as volume increases whereas economies of scope result from decline in the average cost of production due to the sharing resources across products and services.
Your answer is
<span>B. an invoice</span>
Answer:
The uniform annual sales volume of the product for Nadine to be indifferent between the contracts is 7,772 units per year.
Explanation:
We have to compare the present-value of both plans to answer this question.
The Plan A has a present value of $30,000 as is an inmediate payment.
The Plan B has both an annual payment and a royalty, for a span of ten years.
The present value for Plan B is:

This can be simplified with a annuity factor for 10 years, with i=10%.

Then, the PV can be calculated as:

To be indifferent, both present values have to be equal:

The uniform annual sales volume of the product for Nadine to be indifferent between the contracts is 7,772 units per year.