On May $10,$ Cullumber Co$.$ buys $$1,250$ of merchandise on account from Marin Supply, terms $\frac{2}{10},\frac{n}{30}.$ Cullumber pays Marin on May $18.$ The buyer uses the perpetual inventory method.

a$.$ Prepare the entry to record the purchase of merchandise. $($If no entry is required, select $"$No Entry" for the account titles and enter $0$ for the amounts. Credit account titles are automatically indented when the amount is entered. Do not indent manually. List debit entry before credit entry.$)$

Date Account Titles and Explanation

May $10$

b$.$ Prepare the entry to record the payment by Cullumber, if Cullumber pays within the discount period. $($If no entry is required, select $"$No Entry" for the account titles and enter $0$ for the amounts. Credit account titles are automatically.indented when the amount is entered. Do not indent manually. List all debit entries before credit entries.$)$

$\backslash$table$[[$Date$,$Account Titles and Explanation,Debit,Credit$],[$May $18],[,,,],[,,,],[,,,]]$