tolong nomor 6,7,dan 8

1. 9.10^9 × 4.10^-6 × 2.10^-4/36.10-^6
= 72.10^-1/36.10^-6
= 2. 10^5

2. 9.10^9 × 2.10^-9 × 4.10-^9/ (2.10^-2)^2
= 72.10-9/4.10^-4
= 18.10^-5

3. 9.10^9 × 1. 10^-6 × 2.10^-6/ (0.03)^2
= 18. 10^-3/(3.10^-2)^2
= 18. 10^-3/9.^10-4
= 2.10^1=20

mohon untuk koreksi lagi. semoga membantu