The monthly profit for a company that sells hand-made, carbon-steel woks is given by P-460z where P is the profit, in USD, when z woks are sold each month. If the number of woks sold is increasing at a rate of 18 per month, find the rate at which the company's profit is changing with respect to time when 110 are sold each month. In other words, find de dt 110 woks. dP de 4 USD per month. 17000-0.5, dP if we know that -18 woks per month and de