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1. В. some; 2. Б. know everything; 3. А. is sleeping; 4. А. Two penny blue; 5. А. across; 6. Г. expensive. 7. Б. Corroboree; 8. Г. Panchito and Jose. 9. Б. I’m sitting on the balcony of our hotel room. 10. Thomas Moran 11. Г. Dundee. 12. Б. bread; 13. А. from / till; 14. Б. much pear; 15. Б. Tasmania;

А) (a^2+1-10)/(a-3)=(a-3)(a+3))/(a-3)=a+3=97+3=100b) (x+7-2x-2)/(x-5)(x+5)= -(x-5)/(x-5)(x+5)= -1/(x+5)= -1/(-5.1+5)=-1/(-0.1)=10