Jane has hired a worker to pass out flyers that advertise her business. it costs her $120 per day to have this worker travel around town and pass out flyers, and this includes the cost of printing the flyers. jane is trying to decide how many days per month she should hire this worker to pass out flyers. each customer spends an average of $10 when they visit her store. she has been tracking her monthly customers as a function of the number of days per month flyers are passed out and has found the following information: days of flyers per month: 0,1,2,3,4total customers: 800,880,940,980,990what is the marginal benefit of hiring the worker to pass out flyers for 1 day per month?