Which system of inequalities is shown in the graph?

A. y≤-x+3

   y≤ x²-3x

Step-by-step explanation:

Both inequality shadings of the graphs are below the solid lines, which means that y is less than or equal to both of them.

140.32mL per hour

Step-by-step explanation:

Rate of leakage of nitrogen ballon = 75 mL/h

Rate of leakage of helium ballon = x

Molar mass of nitrogen= Mn = 14

Molar mass of helium = Mh = 4

Effusion formula

Rate of effusion of helium/ Rate of effusion of nitrogen= √(Molar mass of nitrogen/Molar mass of helium)

Rate of effusion of helium = 75mL/h * √(14/4)

= 140.32mL/h