3 This is her TV
4 This is them radio
5 This is my lamp
6 This is her bed
7 This is them TV
8 This is his radio
9 This is them lamp
10 This is his bed
2х-8=0
2х=8
х=8/2
х=4
не буде дорывнювати 0
4*3, 6*4, 13*5.
Все, вродебы, решишь сам;-)
1) 60:3=20
2) 20*10=200
Ответ: 200 см-длина взрослой акулы.