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b) 6* (-2) : 12* (-2) = -12 : 12 * (-2) = -1*(-2) = 2
c) (-42) : (-7)* 6 = 6 * 6 = 36
d) (-8)* 6 + 4* (-14) = -48 + (-56) = - 48 - 56 = - 104
e) (-12) : 6* (-4) : 2 = -2 * (-4) : 2 = 8 : 2 = 4
f) (-6)* 9 - (-36) : 4 = -54 - (-9) = -54 + 9 = - 45
g) (-17)*3 + 7*(-13) : (-7) = -51 + (-91) : (-7) = -51 + 13 = -38
h) (-2 1/2)* 8 - (-5)* (2/15) = (-5/2)*8- (-2/3) = -20 + 2/3 = -19 1/3