tolong kerjainnya......

1. Persegi = 12 cm × 12 cm = 144 cm.
Biaya = 144 cm × Rp. 25.000 = Rp. 3.600.000

2. Persegi = 120 cm × 120 cm = 14.400 cm = 144 m
Biaya = 144 m × Rp. 36.000 = Rp. 5.184.000

3. 1 Iklan = 15 cm × 15 cm = 225 cm
5 Iklan = 225 cm × 5 = 1.125 cm
Biaya = 1.125 cm × Rp. 13.000 = Rp. 14.625.000
__________________________________________________________
Jawabannya =
1. Rp. 3.600.000
2. Rp. 5.184.000
3. Rp. 14.625.000