Tolong jawab no 11 and 12.trimksih

11. 1/2×8×9=36

12. 10x=30.000.000

x=3.000.000

harga = 14×3.000.000=42.000.000

11)
pola = 1, 3 , 6

U8 = 1 + 7(2) + 1/2(7) (6)
U8 = 15 + 21 = 36

sangat mudah kan…..