Саламандра ядовита почему?Квакла ползать по стекло ип почему?

Fill prepositions if necessary and retell the text
Tom and Nick are going... the canteen to have dinner. It is only... one but there are many people... the canteen al. ready. Some... them are reading newspapers, others are eating their dinner. The friends always enjoy... their meals there.
They go...a small round table the window, take a menucard.. the next table and begin to read it. Tom does not want to have soup t He is going to take some roast beef any Nick takes some cabbage himself some and vegeta fried fish and potatoes/ He goes... over the buffet and soon comes back.. some tomato and cucumber salad. Then a wait- ress comes ... .... their table and brings the the soup, meat and
fish. She also bnngs some mustard, pepper and salt and puts a knife, fork, spoon... the table....front...each person. Nick wants to have some ice-cream....dessert but as it is not ready yet he takes a piece...cake and glass...tea. Tom orders some fruit as he always prefers fruit...cakes and ice-cream The boys are usually satisfied.. .ther meals...this canteen So they finish their dessert and pay the waitess.... dinner. Then they put... theircoats and go... ...the sreet

замените сумму одним числом 1. ) 30 000+500 +40+2  2)   80 000+200+5 Вычислите площадь участка прямоугольной формы длина которого равна 20 м а ширина в 2 раза меньше

как решить уравнение -8,9-(3,7-X)= -13,6