MGZ Corporation sells its product for $$25$ per unit. Its cost function is TC $=$ $$390+$ $$12$Q$.$ Match the lettered items on the right with the appropriate item on the left. Each numbered item has only one correct answer. Each lettered item may be used once, more than once, or not at all.

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$1.$ $$12$

$2.$ $$13$

$3.$ $$25$

$4.$ $$250$

$5.$ $$390$

$6.30$ units

A$.$ Breakeven point

B$.$ Contribution margin per unit

C$.$ Loss area

D$.$ Profit area

E$.$ Profit at $50$ units

F$.$ The slope of the cost line

G$.$ Slope of the revenue line

H$.$ Total fixed costs

I. None of the above