Suppose a new magazine initially sells 600 copies per month. Research indicates that a vigorous advertising campaign could increase sales by 40% each month if our market were unlimited. But research also indicates that magazine sales in our area are unlikely to exceed 2400 per month. Make a logistic model of projected magazine sales. a) 0.336 600 1 3 t N e = + b) 0.336 2400 1 3 t N e = + c) 0.336 40 1 3 t N e = + d) 0.336 2400 1 40 t N e =