Where are you stuck? Have you been taught how to calculate probaiblities from a normal distribution? I'll do (b):

.

z-score for 130: .

z-score for 210: .

Therefore Pr(130 < X < 210) = Pr(-1.2727 < Z < 1.1515)

= Pr(Z < 1.1515) - Pr(Z < -1.2727)

= Pr(Z < 1.1515) - Pr(Z > 1.2727) by symmetry

= Pr(Z < 1.1515) - [1 - Pr(Z < 1.2727)] = Pr(Z < 1.1515) + Pr(Z > 1.2727) - 1.

Now use your tables to get the required probabilities.