Answer:
8.3 L/s
Step-by-step explanation:
To find the answer you need to find the slope also known as the rate of change. When you find slope it is always change in y over change in x.
[tex]\frac{399-150}{40-10}[/tex]
Then simplify
[tex]\frac{249}{30}[/tex]
Then divide to get your slope/average rate of change
[tex]\frac{249}{30}[/tex] = 8.3
