The table below shows the weekly marginal cost $($MC$)$ and average total cost $($ATC$)$ for Smitten, a perfectly competitive firm that produces children$$s mittens in a competitive market.

Smitten's Production Costs

Quantity $($pairs of mittens$)$ Marginal Cost $($dollars$)$ Average Total Cost $($dollars$)$

$5$ $$1\mathrm{.}50$ $$8\mathrm{.}00$

$102\mathrm{.}005\mathrm{.}00$

$152\mathrm{.}504\mathrm{.}50$

$203\mathrm{.}504\mathrm{.}00$

$254\mathrm{.}004\mathrm{.}00$

$305\mathrm{.}004\mathrm{.}50$

$356\mathrm{.}005\mathrm{.}00$

$408\mathrm{.}505\mathrm{.}50$

Smitten$$s marginal cost and average total cost curves are shown below.