Найти значение производной функции f(x)=3x^3+4x-1 в точке х=3

нароооод ЕЩЁ- это союз???

Английский. Простое задание, просто проверить нужно.) Решите быстренько.

Test 5. Fill in my, your, his, her, our.

Dear Sally,

Thank you for ______(1) letter. I’m fine and I hope that you and ______(2) parents are fine too. In your letter you ask me who helps me with ______(3) homework. I’ve got a brother, but he never helps me with ______(4) homework. My friend Joan has got a brother too and he always helps her with ______(5) homework, but then she helps him with cleaning ______(6) room. We do a lot of homework because ______(7) Maths teacher and ______(8) English teacher are very strict. ______(9) parents think it is okay to have a lot of homework. They always say, ‘ ______(10) teachers were strict too, and so we learned a lot.’ Well, so what can I do? Joan’s parents say that she needs some free time so that she can play or meet ______(11) friends. Thank you for ______(12) photo. I think you look so sweet. Bye. I hope to hear from you soon.

Love, Sarah

В куске материи 112м.Из 11/16 куска сшиликостюмы.Сколько метров материи осталось?

Задания во вложениях :с прошу помогите!!!!!