Final answer:
Abby can buy cupcakes in any multiple of 6. Two examples are 18 (from 3 boxes) or 30 cupcakes (from 5 boxes).
Step-by-step explanation:
To find two possible numbers of cupcakes Abby can buy, we need to select multiples of the number of cupcakes in a box, which is 6. The number of cupcakes Abby decides to purchase must be a multiple of 6 since she wants to buy only full boxes.
Two examples of possible numbers are:
- If Abby buys 3 boxes, she will have 3 x 6 = 18 cupcakes.
- If Abby buys 5 boxes, she will have 5 x 6 = 30 cupcakes.
Therefore, Abby can buy 18 cupcakes or 30 cupcakes.