Write an equation that expresses the following relationship. p varies directly with d and inversely with the square root of u in your equation, use k as the constant of proportionality.

The equation given as p varies directly with d and inversely with the square root of u is written as:

p = k1d
k1 is the proportionality constant.
and p = k2
here k2 is the proportionality constant.

Thus,
 combining both equations we get, p = C
where K = K1*K2, K is the proportionality constant.