If Micah save $150 how much money will his parents give him

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0