4
а)-6р^3
б)-2а^2b^2
в)1/70x^3
г)-3m^5n^9
д)0,06b^2c^7
е)2,7а^3b^3
3
а)36x^5 коэффициент 36
б)0,06a^6 коэффициент 0,06
в)8b^4 коэффициент 8
г)0,7x^9 y^2 коэффициент 0,7
д)27a^3 b^8 коэффициент 27
е)-3x^2 y^17 коэффициент -3
1) Are they in year 7?-Yes,they are
2) Are you 11 years old?-No,I aren't
3)Is it a ruler?-Yes,it is
4)Are you and Mary in the same class?-No,we aren't
5) Is he Mark?-No,he isn't
1. have called
2. didn't call
3. has answered
4. answered
5. went
6. read
7. haven't seen
8. met
9. did
10. have
11. have, enjoyed
12. has stopped
13. have you had, had, have missed
1. are, are
2. is, am
3. am, am
4. are, is
5. are, am