(a) Z=-0.9 corresponds to 18.41% and below. So above this is 81.59%.
(b) 18.41%.
(c) Z=0.4 is 65.54% and below, Z=1.4 is 91.92% and below, within the range is 26.38%.
(d) Z=-1.86 is 3.14% and below, so 96.86% above.
(e) Z=1.94 is 97.38% and below, Z=2.87 is 99.79% and below, so within the range is 2.41%.