Your monthly profit (in dollars) from selling magazines is given by p = 2x + x where x is the number of magazines you sell in a month. if you are currently selling x = 50 magazines per month, find your profit and your marginal profit. (round your answers to two decimal places.) profit $ marginal profit $ per additional magazine interpret your answers. your current profit is $ per month, and would increase at a rate of $ per additional magazine sold per month.