Jawab no 2, 5, 8 dan 9

2). 1/5 + 2/3 + 60 = 3/15+10/15+60=13/15+60= 73/15 = 4.9m2

5). (12x300)x(9x300) = 3600×2700 =9.720.000 cm2

8). 9/100x2.500.000 = 225.000/tahun :12 = 18750/bulan
jadi 2650.000-2.500.000=150.000:18750=8 bulan

9). U40 = 4(40-1)4 = 4.39.4 = 614


good luck ;-) follow.. jadikan jawaban yg terbaik :-)