как составить программу действий и вычислить 14/7*9+6*(13-7) и 15+7*(18/3)-(9+8) и 4*7-(5*6-3)+8*3

напишіть твір  на ткму : "лист педкам" срочно треба..))

Исправьте ошибки:

1.Greg had chosen the present and asked the shop assistant to pack it.

2.How many articles did Betty typed bythe end of last month?

3.Amanda cooked supper before her husband returned home. 

4.By what time had the passengers leave the plane?

5.Where had you gone after tre lessons had finished?