Homework: 2.6 HW Question 10, 2.6.45-BE HW Score: 75.76%, 8.33 of 11 points Part 2 of 3 Points: 0.33 of 1 Use differential approximations in the following problem. A company will sell N units of a product after spending $x thousand in advertising, as given by N= 60x - x2, 5sxs 30, Approximately what increase in sales will result by increasing the advertising budget from $5,000 to $6,000? From $15,000 to $16,000? Find the differential dN. dN = (60- 2x ) dx The Increase in sales from increasing the advertising budget from $5,000 to $6,000 is approximately | units. (Type a whole number.)