Using $8\mathrm{.}3$ and figure $8\mathrm{.}18($pictured$)$ find: using k $=4$x$10-4$ cm$/$sec: a$)$ seepage quantity per

meter length of sheetpiling, b$)$ the factor of safety with respect to the exit

gradient, c$)$ the factor of safety against heave, d$)$ seepage quantity per

meter length of sheetpiling assuming kh $=4$kv where kh $=4$x$10-4$ cm$/$sec $**$Please Answer All Parts$***$