Question

Guys tolong bantu no. 1,2,3,4 ya ... tolong pkek cara

Answer 1

2.) 20.000/8 = 2.500
Harga 1½ lusin = 18 x 2500 = 45.000

4.) √162 + 4√18 - 5√32
= √81x2 + 4√9x2 - 5√16x2
= 9√2 + 12√2 - 20√2
= - √2

Answer 2

1.30:30=1,30:20=1,5 1+1,5=2,5.30:2,5=12 hari
2.18:8=2,25×20000=45000
3.400+50=450.400×18:450=16 hari
4./162+4/18-5/32
=/81×2+4/9×2-5/16×2
=9/2+12/2-20/2
=/2