The formula for potential energy is p = meh, where p is potential energy, m is mass, g is gravity, and h is height. represent g, in terms of p, m and h.

You solve this using basic algebra techniques. So starting with P=mgh you want to end with g = something. So first you could divide by m on both sides getting P/m = gh. Then you need to divide by h to get g by itself. This ends with P/mh = g.