please bantu ya guys

16. 8 × 1,6
2 × 6,4
4 × 3,2

17. 2 liter : 1 minggu = x liter : 1 bulan
2 liter : 1 minggu = x liter : 4 minggu
x liter = 8 liter

18. (750 :25) -15 = 50-n
30 - 15 = 50 -n
15 = 50 - n
-35 = -n
35 = n

19. Jumlah rasa keju

= 3/(3+2) × 20
= 3/5 × 20
= 12 buah

20. jarak pada peta
= skala × jarak sebenarnya
= 1/750.000 × 75 km
= 1/750.000 × 7.500.000 cm
= 10 cm

Sekian....