A double$-$angle shape, $2L66\frac{5}{8},$ is connected to a $\frac{5}{8}-$inch gusset plate as shown in Figure P$7\mathrm{.}6-1.$ Determine the maximum total service load that can be applied if the ratio of dead load to live load is $8\mathrm{.}5.$ The bolts are $788-$inch$-$diameter, A$325$ bearingtype bolts. A$572$ Grade $50$ steel is used for the angle, and A$36$ steel is used for the gusset plate.

a$.$ Use LRFD$.$

b$.$ Use ASD.