Exercise $12\mathrm{.}46.$ BIO Artery Blockage.A medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is $1\mathrm{.}20$ x $104$ Pa$,$ while in the region of blockage it is $1\mathrm{.}15$ x $104$ Pa$.$ Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at $30\mathrm{.}0,$ and the specific gravity of this patient's blood is $1\mathrm{.}06.$What percentage of the cross$-$sectional area of the patient's artery is blocked by the plaque?