The Law's the law

Hometask for the 18-th of January:

7 "A"
1) Голицынский p. 92 ex. 116 (in written form)
2) Laser SB p. 28 ex. 1, 2, 3


7 "B"
1) Голицынский p. 92 ex. 116 (in written form)
2) Laser SB p. 28 ex. 2, 3