What is force the product of a. newtons and weight b. position and mass c. newtons and gravity d. mass and acceleration

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?

Describe the domain and range of y=2(3)^x-2+5

Factor and solve to find roots x squared -x - 90 =0