When it is raining outside, you tend to stay in and watch TV. The number of hours of TV that you watch in a given week is twice the number of rainy days in that week. In the table below, $y$ is the number of hours of TV you watch in a week, and $x$ is the number of rainy days in that week.
**Write an equation for the number of hours of TV you watch in a given week, $y$, when there are $x$ number of rainy days that week.**
[[☃ expression 1]]
Suppose you spent $12$ hours watching TV this week.
**How many rainy days were there this week?**
[[☃ input-number 1]] rainy days
$x$ | $y$
:-:|:-:
$1$ | $2$
$2$ | $4$
$3$ | $6$
$4$ | $8$