To find your earnings per hour, you can use the equation given:
\[ 40y = 280 \]
Here, \(y\) represents your earnings per hour. To solve for \(y\), divide both sides of the equation by 40:
\[ y = \frac{280}{40} \]
Now, perform the division:
\[ y = 7 \]
Therefore, your earnings per hour are $7.00.