tolong jawab pakai cara ya kak no 8-12 aja ya kak,kalo mau jawabin yg lain gpp kok

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8.10 bulan
karena 12/100*150000=18000/12=1.500
165000-150000=15000:1.500=10
jadi 10 bulan
9.37.500
karena 18/100*250000=45000/12=3750*10=37500
11.15000/10=1500*12=18000
12.66 (30/5=6) 6*6=36
30+36=66