-1/3x is the slope of the line
A is 11 and b is 16. for b you would plug in what you got for a for x
The volume of the tank is (70 cm)³ = 343,000 cm³.
Now,
1 mL = 1 cm³
1 L = 1000 mL
so we convert the given rate to

Then the time it will take to fill up the tank is
