Вычислите, во сколько раз масса атома кальция больше массы атома углерода.

.ask a question about the information underlined in each of the folloving sentences. -................................................................................................-she is abroad. -................................................................................................-she goes abroad. -................................................................................................-she went abroad. -................................................................................................-she will go abroad. -...............................................................................................-she can go abroad. -................................................................................................-she must go abroad. -...............................................................................................-tney will go abroad next august. -................................................................................................-he will wear a new uniform. -................................................................................................-he learns the words because he wants to get a good mark. -................................................................................................-she studied three foreign languages. помогите ,плиз ,умоляю ,пожалуйсто !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

как проверить гласную о в слове первОцвет

Решите пожалуйста)

tg^2 3x=3

У дяди Фёдора есть дом в деревне Простоквашено и квартира в городе. В чём разница между этими жилищами? в чем преимуществои недостатки?