For

(a) through (d), identify the items designated by " \(\mathrm{X}\) " and " \(\mathrm{Y}\)."

a. Purchases \(-(\mathrm{X}+\mathrm{Y})=\) Net purchases.

b. Net purchases \(+X=\) Cost of merchandise purchased.

c. Merchandise inventory (beginning) + Cost of merchandise purchased \(=X\).

d. Merchandise available for sale \(-X=\) Cost of merchandise sold.

obj. 3