Marie Bain is the production manager at a company that manufactures hot water heaters. Marie needs a demand forecast for the next few months to help decide whether to add new production capacity.

To build a forecast model, she used the company's sales history $($in thousands of units$)$ and developed a linear regression model between demand $($Y$)$ and week number $($X$)$:

Y $=65\mathrm{.}52+1\mathrm{.}09$ X

Using her model, compute the forecast demand of the week $12.$

$($Round your answer to two decimal places e$.$g$.24\mathrm{.}35)$