Гидросульфат алюминия

5^n+1-5^n-1/2*5^n упростить выражение

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Complete the text (дополните текст).

The weather (1) ...going to be fine. Our family (2) ...going to spend the holidays in the country. Mother (3) ...going to pick flowers and mushrooms. Father (4) ...going to go fishing. My sister asks, "(5) ...you going to swim? I (6) ...going to go with you!" My friends say, "You (7) ...going to sunbathe. And we (8) ...going to watch TV." They (9) ...going to have fun. And I want to spend the summer in the city and ride my bike but nobody (никто) (10) ...going to listen to me.

Я не понимаю, что сдесь нужно дополнять?

Какой азимут имеет направление северо-восток?

 а) 360 градусов б) 90 градусов  в) 45 градусов г) 225 градусов