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5 x 0 = 0
10 x -1 =-10
100 - 10 = 90
Skor yang diperoleh Eric: 90
0 x 5 = 0......nilai tdk jwb
(-1) x 10= (-10)....nilai salah
Jumlah : 100 + 0 + (-10) = 90
Jadi, nbilainya adalah 90.