A What is the cell formula for B$12$ in the Excel model? B What is the cell formula for C$12$ in the Excel model? C What is the cell formula for E$12$ in the Excel model? D What is the cell formula for D$4$ in the Excel model? E What is the cell formula for D$5$ in the Excel model? F What is the cell formula for D$6$ in the Excel model? G What is the optimal value for x$1$ in the Excel model? H What is the optimal value for x$2$ in the Excel model? I What does the value of cell F$4$ represent in the Excel model? J What does the value of cell B$5$ represent in the Excel model? MGMT $430$ Week $2-$ Discussion $3$ F Available $403012>=$ A B $$ D E $1$ Input $2$ Information $3$ Variable $1$ Variable $2$ Used $($type$)4$ Constraint $12540\mathrm{.}05$ Constraint $23130\mathrm{.}0$