Answer:
Marci Needs 756 piece of candy to ice 42 cupcake packages
Explanation:
Marci puts 3 piece of candy for one cupcake
in each package there is 6 cupcake, so for 6 cupcake she needs 3 × 6 candy
3 × 6 = 18
so for 42 packages she need 18 × 42
18 × 42 = 756
Hope you understood it....