Jawabanmu

2014-03-25T21:19:47+07:00
A.Mr = 2.14+1.8+32+16.4 = 28+8+32+64 = 132
28/132 X 100% = 21,21%
b.Mr = 14+1.4+14+16.3 = 14+4+14+48 = 80
28/80 X 100% = 35%

maaf kalau salah