Number of units sold $=450,000$

Sales price per unit $=$$$15$

Variable cost per unit $=$$$6$

Degree of operating leverage $=1\mathrm{.}30645$

Degree of financial leverage $=1\mathrm{.}08772$

Beta Inc.$\text{'}$s operating breakeven number of units is closest

$94,444$ units

$83,333$ units

$105,555$ units