urgent $!!!!$ please help need to solve in $30$ mins and do not use chatgpt

A pressurized pipe with internal pressure pi has an outer radius of $8$ in and a $2-$in wall

thickness. For the pipe material, KIc $=72$ kpsi$$in$,$ Sy $=170$ kpsi, and Sut $=192$ kpsi. If the pipe

contains a radial crack in the longitudinal direction of depth $0\mathrm{.}8$ in determine the pressure that

will cause uncontrollable crack growth.