$16\mathrm{.}20$: A concrete pier $10$ in$.$ x $6$ in$.$ supports a load of $100$ kip at point E as shown. Determine the stresses at $$the four corners of $$the pier and locate the neutral axis if $$point E$$is $$located at$$ey$=1\mathrm{.}5$in$.$and ez$=2\mathrm{.}5$in$.$