A $32\mathrm{.}2$ kg boy stands on a horizontal surface.

HINT

$($a$)$

What is the volume of the boy's body $($in m$3)$ if his average density is $989$ kg$/$m$3?$

m$3$

$($b$)$

What average pressure $($in Pa$)$ from his weight is exerted on the horizontal surface if his two feet have a combined area of $1\mathrm{.}70102$ m$2?$