$9\mathrm{.}1$ through $9\mathrm{.}3$ Refer to Figure $9\mathrm{.}26.$ Calculate $,u,$ and ${}^{\text{'}}$ at $A,$

$B,C,$ and $D$ for the following cases, and

plot the variations with depth. $($Note: $e=$ void

ratio, $w=$ moisture content, $G_s=$ specific

gravity of soil solids, ${}_d=$ dry unit weight,

and ${}_{\text{s}\text{a}\text{t}}=$ saturated unit weight.$)$

FIGURE $9\mathrm{.}26$

solve $9\mathrm{.}3$ please