Answer
From the year 2021.
Work Step by Step
$W\gt45$
$0.903t+26.08\gt45$
$0.903t\gt45-26.08$
$0.903t\gt18.92$
$t\gt\frac{18.92}{0.903}$
$t\gt20.952$
Given that $t$ must be an integer:
$t\geq21$
But $t=21$ corresponds to the year of 2021.
