$(5$ pts$)7.$ A U$-$shaped tube has water $($density $1000k\frac{g}{m^3})$ in the left arm and mercury $($density $13,600k\frac{g}{m^3})$ in the right arm. The top of both sides of the tube are open to the air. Point $1$ is at the bottom of the water column and point $2$ is in the mercury. Points $1$ and $2$ are the same height $h$ above the bottom of the tube. What is the correct statement about the pressures at points $1$ and $2?$