Last year Bob purchased a plane ticket for $300. He was unable to take the trip so he received a voucher to use towards a future tria The voucher is set to expire. Bobines the voucher to take a vacation. While on vacation he spends $600 on a hotel and $400 on food and various other expenses. He did not have any vacation time at work so he took a few days off during which time he would have earned $450, John's explicit cost of takine the vacationis John's molt cost of taking the vacationis Johnsooportunity cost of taking the vacations Enter whole numbers with a doll