Problem #$2$

Three geologic formations overlie one another, with characteristics listed below:

$\backslash$table$[[$Geologic Layer,Thickness $($m$),$Hydraulic Conductivity$],[$Formation $1,5,6\frac{m}{?}$ day$],[$Formation $2,6\mathrm{.}9,6c\frac{m}{?}$ day$],[$Formation $3,8,0\mathrm{.}9m\frac{m}{d}ay$