## Algebra and Trigonometry 10th Edition

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