Which sales forecast is correct based on the regression model described below if the company decides to spend $$10,000$ on advertising: y $=70\mathrm{.}5+3\mathrm{.}0$x where: y $=$ unit sales in thousands x $=$ dollars spent on advertising on thousands Where are forecasted unit sales?

$100\mathrm{.}5$ units.

$30,070\mathrm{.}5$ units.

$73\mathrm{.}5$ units.

$30\mathrm{.}503$ units.

$1,000\mathrm{.}5$ units.