Simplify: 2/5(10x-10y)-3/4(12x-24y)

a) −5x + 14y

b) −5x − 14y

c) 5x + 14y

d) 5x − 14y

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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?

Can someone me and do the problem plz so i can understand it more better