PBeam with built$-$up cross section

The beam pictured below has the following values: $b=8in,h=12in,L=20ft,P_1=5$ kips, and $P_2=10$ kips. The cross section is made of three pieces bonded together by glue. For all answers, provide the magnitude of the answer $($positive values for all answers$).$

$10\mathrm{.}25$ points

Determine the maximum normal stress in psi.

$0\mathrm{.}25$ points

Determine the normal stress at the glue joint in psi$).$

$3.0\mathrm{.}25$ points

Determine the maximum shear stress in psi.

$40\mathrm{.}25$ points

Determine the shear stress in the glue joint in psi.