$($a$)$ For the bolted$-$connection hanger, How many bolts $(1/2-$in Dia.$)$ are needed to encounter the LRFD tensile load P $=280$ k$,$ Use A$325$ bolts $($Nominal tensile strength $=90$ ksi $,$Nominal Shear strength $=68$ ksi$($b$)$: For $5/16$ in fillet weld connection to the base plate, Determine weld strength, if E$70$ electrode is used in welding process. Assume weld length is $5$ in$.($Given that tensile strength $=0\mathrm{.}6$ Fox for the base plate