The publishers of a business magazine are running a sales promotion for their weekly magazine. The number of prospective customers a sales representative sees per day varies from 1 to 40. The table shows the simulated data of the number of prospective subscribers approached by a sales representative for 8 consecutive weeks. Day 1 2 3 4 5 6 7 Week 1 20 22 27 17 31 12 39 Week 2 26 13 30 18 24 14 32 Week 3 21 12 22 37 30 23 18 Week 4 15 33 10 28 34 24 22 Week 5 11 33 21 32 26 19 22 Week 6 19 27 20 18 31 14 37 Week 7 29 22 27 30 16 09 36 Week 8 08 28 19 28 25 36 26 If the sales representative is able to get 20% of the prospective customers to subscribe, the maximum expected number of subscriptions per week is . If the sales representative earns $3 per subscription in addition to daily wages, the minimum expected value of the extra income per week is .