The answer is 161 degrees
x-2=7
apply additon property of equality
x-2+2=7+2
x=9
It could be a linear graph with a negative slope
x axis is height above ground and y axis id air pressure
so there willbe a point at (0,14.7) on y axis representing the pressure at sea level. There will be another point at (3.6, 7.35) where air pressure is half that at ground level. The straight line will continue until it reaches the x axis ad (0, 7.2) where there is no air pressure.
Plate motion
Convergent boundary
Convection
Subduction
May be wrong. I’m sorry if it is. We did just learn this but still I could be wrong. Good luck!