(Solved): The pipes at A and B contain oil and the inclined-tube manometer is filled with oil and mercury, as ...

The pipes at $A$ and $B$ contain oil and the inclined-tube manometer is filled with oil and mercury, as shown in (Figure 1). Suppose that $d=15\mathrm{in}$. Determine the pressure difference between $A$ and $B$. Take ${?}_o=1.70\mathrm{slug}/{\mathrm{ft}}^3$ and ${?}_{\mathrm{Hg}}=26.3\mathrm{slug}/{\mathrm{ft}}^3$. Express your answers in pounds per square inch to three significant figures.