$6\mathrm{.}8$ A $100-$ft steel tape of cross$-$sectional area $0\mathrm{.}0025$ in$.{?}^2,$ weight $2\mathrm{.}3lb,$ and standardized at $68F$ is $99\mathrm{.}992ft$ between end marks when supported throughout under a $12-lb$ pull.

What is the true horizontal length of a recorded distance $AB$ for the conditions given in table below $($Assume horizontal taping and all full tape lengths except the last.$)$

$\backslash$table$[[\backslash$table$[[$Recorded$],[$Distance $AB$