Answer:
12 would be the answer.
Step-by-step explanation:
4:2 as a ration of cupcakes to guests means that there are 2 cupcakes for every person or a 2:1 ratio. If their are 6 guests you multiply both sides by 6 in a 2:1 ration which means the ratio of cupcakes to humans would be 2 x 6: 1 x 6 or 12:6.