Tolong jawab yaaaaa 1-10

1. B.
2. B
3. 68/x = 100.000/75000
68/x = 4/3 sama sama dibagi 25000
dikali silang
4x = 68×3
4 x = 204
x = 51
68 +51 = 119 kWh
4. d
5. d
6. b
7 . c
8. a
9. d. sama dibagi 20
10. c