Answer
2000
Work Step by Step
daily morning: $y=12.6x+716.1$
daily evening: $y=-23.8x+806.3$
$y=12.6x+716.1$
$y-y-716.1=12.6x+716.1-y-716.1$
$-716.1 =12.6x-y$
$y=-23.8x+806.3$
$y-y-806.3=-23.8x+806.3-y-806.3$
$-806.3=-23.8-y$
Please see the applicable matrices.
2.478 rounds to 2.48, which rounds to 2.5. 2.5 rounds to 3.
$3+1997=2000$
