$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|\}$

$\backslash$hline $\backslash$begin$\{$tabular$\}\{$c$\}$

Output $\backslash \backslash$

$($Instructional $\backslash \backslash$

$\backslash$begin$\{$tabular$\}\{$c$\}$

modules per $\backslash \backslash$

month$)$

$\backslash$end$\{$tabular$\}\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$l$\}$

Fixed $\backslash \backslash$

Cost $\backslash \backslash$

$($Dollars$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$l$\}$

Variable $\backslash \backslash$

Cost $\backslash \backslash$

$($Dollars$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$l$\}$

Total $\backslash \backslash$

Cost $\backslash \backslash$

$($Dollars$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$l$\}$

Marginal $\backslash \backslash$

Cost $\backslash \backslash$

$($Dollars$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$l$\}$

Average $\backslash \backslash$

Fixed $\backslash \backslash$

Cost $\backslash \backslash$

$($Dollars $\backslash \backslash$

per $\backslash \backslash$

unit$)$

$\backslash$end$\{$tabular$\}\backslash \backslash$

$\backslash$hline $0$ & $1,080$ & & & & $\backslash \backslash$

$\backslash$hline $1$ & $1,080$ & $400$ & $1480$ & $400$ & $\backslash \backslash$

$\backslash$hline $2$ & & & & $450$ & $\backslash \backslash$

$\backslash$hline $3$ & & $1,350$ & $2,430$ & & $\backslash \backslash$

$\backslash$hline $4$ & & $1,900$ & & & $\backslash \backslash$

$\backslash$hline $5$ & & $2,500$ & & & $216\backslash \backslash$

$\backslash$hline $6$ & & & $4,280$ & $700$ & $\backslash \backslash$

$\backslash$hline $7$ & & $4,100$ & & & $\backslash \backslash$

$\backslash$hline $8$ & & $5,400$ & & & $135\backslash \backslash$

$\backslash$hline $9$ & & $7,300$ & & & $\backslash \backslash$

$\backslash$hline $10$ & & & $10,880$ & & $\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$

Refer to Table $14-10.$ One month, Teacher's Helper produced $18$ instructional modules. What was the average fixed cost for that month?