Problem H$05-04.$ Double reinforced$-$concrete beam analysis $[$Points: $1/5].$

Determine the design strength of the beam shown. Use $f_c^{\text{'}}=3,000lb\frac{f}{i}{n}^2,f_y=40,000lb\frac{f}{i}{n}^2.$ Exploit the instructor spreadsheet calculator posted in D$2$L to speed up the numerical calculations.