A store is giving every customer who enters the store a scratch-off card labeled with numbers from 1 to 10.It is equally likely that any of the numbers from 1 to 10 will be labeled on a given card. If the card is an even number, the customer gets a 15 percent discount on a purchase. If the card is an odd number greater than 6, the customer gets a 30 percent discount. Otherwise, the discount is 20 percent. i will give brainlest