Situation $4-$ For the $100-$mm$-$diameter suction pipe leading to a pump shown in Fig. $7-12,$ the pressure at point A in the suction pipe is a vacuum of $180mm$ of mercury. If the discharge is $0\mathrm{.}0300m\frac{3}{s}$ of oil $)=(0\mathrm{.}85,$ find the following:

$7.$ Velocity at point $A$ in $\frac{m}{s}$

A$.3\mathrm{.}820$

C$.3\mathrm{.}660$

B$.3\mathrm{.}948$

D$.3\mathrm{.}548$

$8.$ Pressure at point $A$ in $\frac{m}{s}$

A$.-23\mathrm{.}97$

C$.-36\mathrm{.}04$

B$.23\mathrm{.}97$

D$.36\mathrm{.}04$