Answer
$x=48.64$
Work Step by Step
$p(z\gt z_0)=.01=1$%
$p(0\lt z\lt z_0)=p(z\gt 0)-p(z\gt z_0)=.5-.01=.49$
According to Table IV, page 773:
If $p(0\lt z\lt z_0)=.49$ then $z_0\approx.2.33$
$z_0=\frac{x-\mu}{\sigma}$
$2.33=\frac{x-30}{8}$
$x-30=2.33(8)$
$x=30+18.64=48.64$