The inverse demand a monopoly faces is p = 100−Q+A0.5, where Q is quantity, p is the price, and A is its level of advertising. Its marginal cost of production is constant at $10 (no fixed cost), and its cost of a unit of advertising is $1. (a) Write down the monopolist’s profit equation. (b) Solve for the monopolist’s profit-maximizing price, quantity and level of advertising.