How do i calculate the pressure of 43 in. hg to psi

As given the two quantities given are pressure units

the relation between psi and in Hg is

1 psi  =  2.04 inch mercury

Or

0.491 psi  =  1 inch mercury

the problem can be solved by unit factor label method

the unit factor for the two units will be

We have to convert 43 in Hg to psi so we will use following conversion factor

43 in Hg = 43 X 0.491 psi = 21.11 psi pressure