Problem #$1$ The cross$-$section shown below is part of a beam that was reinforced for flexure and shear with apprapriate longitudinal and transverse $($stimup$)$ reinforcement, respectively, as shown. The beam is made of concrete with $f_c^{\text{'}}=6$ksi, steel reinforcement with $f_y=80)$ ksi $($Grade $80)$ and is exposed to weather. The concrete contains aggregates that have a maximum size of $\frac{3}{4}.$

a$)$ Determine whether the shown beam design is code$-$compliant with respect to the provided langitudinal $($flexural$)$ reinforcement.

b$)$ Determine the design flexural strength $(M_n)$ of the beam.