найдите корень уравнения 9^х-2=81

В каких единицах в системе СИ измеряется жесткость пружины. СРОЧНО

Some or any?  Read and write. A:  What do you want to eat? B:  Mm, I want a burger and 1) some chips A:  Oh, they haven't  got 2).................burgers. A:  Have they got  3) .............. sandwiches? B:  Yes! Do you want 4).......................lemonade too! A:  No, thank you. Can I have 5) ............. Coke, please? B:  They haven't got 6)................. Coke. What about A:  7)...............orange juice? B:  Ok.