1.One of your firm's suppliers discounts prices for large quantities. The first 1000 parts are $15 each.

1.    One of your firm's suppliers discounts prices for large quantities. The first 1000 parts are $15 each.

The next 2000 are $13 each. All parts in excess of 3000 cost $12 each. What are the average cost and marginal cost per part for the quantities: show all work

 (i) 1700

 (ii) 3800

(iii) 1200

(iv)  900

Show all works.