The store price of a jeans is $50. If the discount given by the store is 45%, calculate the discount amount offered by the store on the jeans. $20

$22.5

$25

$27.5

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.