tolong jwb pertanyaan ini

2.
[tex] \frac{6}{10} = \frac{3}{x} \\ 6x = 30 \\ x = 5cm[/tex]
1.
[tex] \frac{9}{12} = \frac{12}{12 + p} \\ 108 + 9p = 144 \\ 9p = 144 - 108 \\ 9p = 36 \\ p = 4[/tex]
maaf no 3 ga saya kerjaakan bingung