Pls help...
how to find the pressure of gas without using the
Pv=nRt formula

Well this is the way I know... And if you don't like it then i am sorry... and I actually mean it... First, review the ideal gas law, PV = nRT. In this equation, 'P' is the pressure in atmospheres, 'V' is the volume in liters, 'n' is the number of particles in moles, 'T' is the temperature in Kelvin and 'R' is the ideal gas constant (0.0821 liter atmospheres per moles Kelvin). The ideal gas law can also be written and solved in terms of the number of moles of gas: PV = nRT, where n is number of moles and R is the universal gas constant, R = 8.31 J/mol ⋅ K. The ideal gas law is generally valid at temperatures well above the boiling temperature. Hope this helps you understand a little bit better...

Explanation:

object 2 because all the other ones are wrong

the area between the graph and the t axis