скласти 8 речень з синонімами

просклонять числительное 1834.

Проверить ошибки(грамматика): 

When I went to art school, I found out about the many artists and their paintings. Most of all I liked the masterpieces of Ivan Aivazovsky. His paintings clearly reflect the mood of the sea. It can be found quiet movements of the waves and the true storms. I really like his painting, "Moonlight. Feodosia in Bath." Now this painting is in Tahanrohzkiy art gallery. The painting depicts the night sky and the sea with a monthly track. On the shore is a small house with open doors. Next shown embankment with small houses. In the center of the picture left and right of the track monthly proudly stand sailboats. At the center of the sky visible clouds. This painting realistically conveys the amazing beauty of the night sea, illuminated bright full moon. This picture is rightly one of the best works of the artist.

3,4x + 5,7x +6.6x - 4,7x при x = 3,6; 0,8; 10 помогите пожалуйста! 

Найдите площадь трапеции,изображенной на рисунке.