A news stand sells local fashion magazines. The cost to purchase the magazines is the list price of $8.00 less a discount of 35%. Fixed costs total $389 per week. The usual price for the magazines is the list price. Answer each of the following independent questions. ​
(a) If the desired profit is ​$129​, how many magazines must they sell each​ week? ​
(b) If the news stand puts the magazines​ "on sale" at 14​% off the regular selling​ price, how much would the profit be if they sold 370 units in a​ week?