7 .Выберите правильный вариант ответа . Напишите предложения и переведите их на русский язык. . 1.Mathematical tools are used in economics ... a) briefly; b) extensively; c) finally. 2. Like English grammar economics has a few... a) rules; b) graphs; c) lines. 3. Economics has some similarities to … because it studies people and their relations in social groups. a) chemistry b) history c) geography 4. Like chemistry economics uses … a) the scientific methods b) simple rules c) logical thinking