Помогите пожалуста даю 10 баллов

1 what did the Adams buy?2 Have the already met Mr. Smith?3 When did they meet Me Smth?4 Are they going there again?5 What does she teach?6 what was he interested in?7 Do they have to get up early?8 Where did they have to meet them?9 Which room does Mary have to clean?10 what do they have to wear?

Любое число по модулю есть положительное т.е. /-4,2/=4,2 теперь просто складываем 4,2+3=7,2 точно так же и следующие примеры2)90:15=63)7/12-5/12=2/12=1/64)35+8=435)5/9*3/5=1/36) будет 0