solascriptura723 solascriptura723 19-05-2021 Mathematics contestada Sam paid $8.28 for 18 stamps. At this rate, how much would it cost Sam to buy 12 stamps? * 1. $2.19 2. $2.28 3. $3.72 4. $5.52 I need a full explanation, for me to give you a brainliest, a thanks, and a 5 star review!!