Установить соответствие 1an invoice; a) an exchange of goods and services between nations;
2foreign trade; b) the price given for goods or a piece of work;
3a statement ;c) a letter where the customer tries to get better terms;
4a receipt; d) a bill for goods sent or work done;
5a quotation; e) an approximate calculation of the cost of something;
6an estimate; f) a document that proves you have paid for some goods;
7a counter - proposal; g) a list of amounts paid and still owed, sent every month.

1 - d) a bill for goods sent or work done;
An invoice is a document that is sent by a seller to a buyer, indicating the amount of money owed for goods or services that have been provided. It is a request for payment and serves as proof of the transaction.

2 - a) an exchange of goods and services between nations;
Foreign trade refers to the buying and selling of goods and services between different countries. It involves the importation and exportation of products, and it is crucial for the economic growth and development of nations.

3 - g) a list of amounts paid and still owed, sent every month;
A statement is a document that provides a summary of transactions, showing the amounts paid and still owed by a customer. It is usually sent on a regular basis, such as monthly, and helps individuals or businesses keep track of their financial obligations.

4 - f) a document that proves you have paid for some goods;
A receipt is a written acknowledgment or proof of payment for goods or services. It is typically given by the seller to the buyer after the completion of a transaction. Receipts are important for record-keeping and can be used for returns, warranties, or expense reimbursement purposes.

5 - e) an approximate calculation of the cost of something;
A quotation is an estimate or a price proposal provided by a seller to a potential buyer. It gives an approximate calculation of the cost of a product or service and includes details such as quantity, price per unit, and any additional charges.

6 - b) the price given for goods or a piece of work;
An estimate is a price given for goods or a piece of work that is yet to be completed. It provides an approximate cost and acts as a preliminary evaluation of the expenses involved in a particular project or purchase.

7 - c) a letter where the customer tries to get better terms;
A counter-proposal is a letter or document where a customer responds to an offer made by a seller or another party. In this letter, the customer suggests alternative terms, such as price, quantity, or delivery conditions, in an attempt to negotiate or get better terms for the transaction.