HOC24
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is more expensive than living in Bac Giangalthough it rained, i went to school on timeHe turned to Movie Channel because he wanted to watch Harry Potter
a, = (-57) + 57 + ( 14 + 26 ) = 0 + 40 = 40b, = (-42) + 42 + ( 6+10) = 0 + 16 = 16c, = 73+ (-73) + (-25) +15 = 0 + 10 = 10d, = (-93) + 93 + 60 + (-50) = 0 + 10 = 10e, = (-239) + 239 + (-16) + (-14) = 0 + ( -30) = -30