$L_1=14ft$

$L_2=20ft$

Roof Live Load $=20lb\frac{s}{f}{t}^2$

Steel I$-$Beam $BE=70lb\frac{s}{f}t$

Misc. Roof and Ceiling Material $=4\mathrm{.}5lb\frac{s}{f}{t}^2$

Concrete Roof Deck $=145lb\frac{s}{f}{t}^3$

Using the given live load and dead loads, determine the reaction force at $B$ due to beam $BE$

framing into the girder $AC.$ The concrete roof deck has a thickness of $5$ inches.

$($Note: Provide your answer in units of kips using $3$ significant digits of accuracy.$)$