Change one digit from the number 238882 so that it is divisible by 3 not not divisible by 2

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

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?

Find the value of the variable and the length of each secant segment.