Normal Distribution

If X belongs to the Normal distribution with mean 22 and standard deviation of 5.

Find k if

Pr(22-k <=X <= 22 + k) = 0.7

Pr(22-k < X < 22 + k) = 0.24

Pr(X<k|x<23) = 0.32


thank you in advance

Start by converting to standard normal.