$2\mathrm{.}27$ Bourdon gages $($see video V$2\mathrm{.}4$ and Fig $2\mathrm{.}13)$ are commonly used to measure pressure. When such a gage is attached to the closed water tank of Fig. P$2.27$ the gage reads $5$ psi. What is the absolute air pressure in the tank? Assume standard atmospheric pressure of $14\mathrm{.}7$ psi.

Figure P$2\mathrm{.}27$