The Foundational $15($Algo$)[$LO$1-1,$ LO$1-2,$ LO$1-3,$ LO$1-4,$ L$01-5,$ LO$1-6]$

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Martinez Company's relevant range of production is $7,500$ units to $12,500$ units. When it produces and sells $10,000$ units, its average costs per unit are as follows:

$\backslash$table$[[,$Average Cost$],[,$per Unit$],[$Direct materials,$$6\mathrm{.}60$