(2 в -7 *2 в 9) /2 в 3 (вычислите)

просклоняйте по падежам слово бабочка плиз очень нужно зарание спасибо

Привет! Помогите решить: в равнобедренном треугольнике АВС, АВ=ВС=20 см,АС=10см;точка К лежит на стороне ВС,СК=5см. найдите АК

Глаголы to be, to have.

Оборот there + to be Вставьте глаголы to be, to have, оборот there + to be в соответствующей форме (Ответ отправьте в виде файла)

1. I _____ a student.

2. Next Monday I’ll ______ an exam.

3. My favorite subject _____ Biology.

4. I wonder where is Peter? He ______some work to do.

5. There _____ many flowers in our garden.

6. She _______ a large flat in the center of the city.

7. Who _____ your best friend?

8. How many letters ______ there in the English alphabet?

9. Tomorrow we’ll ______ a party. Will you join us?

10. How old _____ Mary?

11. There ______ a table and three chairs in the room.

12. What about going to the cinema?- I ________ enough money.

13. This station _____ far from here.

14. There _____ not any milk in the glass.

15. There ______ much snow last winter.

16. We ______ a few sunny days last summer.

17. _____ your family large?

18. Who ______ the first President of the USA?

19. _____ you ____ a lot of books at home?

20. There ______ no people in the room.