The first one is it trust me
One solution, the answer is x = 0.
C. in^3 because is you describe the amount of something then you are finding out what the volume is.
1+y≥3
1+1≥3 is not true so y=1 is not a solution.
Hope this helps:)<span />
In order to answer this question, we use the concept of ratio and proportion wherein we use the equation,
R1 / T2 = R2 / T1
where R is for rate and T is for time. Substituting the known values to the equation,
(600)/x = (400)/ 20
The value of x from the equation is 30. Thus, it will take 30 hours if the rate was adjusted to 400 gallons per minute.