Linda's Marbles generated $$50,400$ in total sales for the month of September. Her total variable costs were just $$16,800,$ leaving her

with total contribution margin of $$33,600.$ The selling price per unit of marbles $($a small bag is considered a$.$ unit$)$ is $$6.$

How many units did Linda sell that month?

Number of units sold

units

What was her variable cost per unit?

Variable costs

$

per unit

What was her contribution margin per unit?

Contribution margin

$

per unit