Kent Co. includes one coupon in each bag of dog food it sells. In return for eight coupons, customers receive a leash. The leashes cost Kent $2.00 each. Kent estimates that 40 percent of the coupons will be redeemed. Data for 2006 and 2007 are as follows:
2006 2007
Bags of dog food sold 500,000 600,000
Leashes purchased 18,000 22,000
Coupons redeemed 120,000 150,000