QUESTION 13 For the demand function q = D(p)=√√318-p. find the following. a) The elasticity b) The elasticity at p 81, 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) Tip: Show work to get credit. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)