A manager observes a worker assembling gift baskets and records the data displayed in the table.

$\backslash$table$[[$Time $($minutes$),$Observations$],[18,10],[20,12],[22,15]]$

Use the information in Scenario $2\mathrm{.}2.$ What is the normal time for this job element if the rating factor is $50\%?$

$12\mathrm{.}55$ minutes

$10\mathrm{.}39$ minutes

$8\mathrm{.}45$ minutes

$9\mathrm{.}74$ minutes