For the demand function q = D(p) = 100 / (p + 3)^5, find the following.
a) The elasticity
b) The elasticity at p = 3, stating whether the demand is elastic, inelastic or has unit elasticity
c) The value(s) of p for which total revenue is a maximum (assume that p is in dollars)
a) Find the equation for elasticity.
E(p) =