Answer:
The expression isTotal number of cupcakes Sean orders=5 boxes (12 cupcakes)+ 3.5 boxes (12 cupcakes)
Explanation:
A box= 12 cupcakes
Sean's order
Sister's graduation=5 boxes
Variety show party=3.5 boxes
Total number of cupcakes Sean orders=5 boxes (12 cupcakes)+ 3.5 boxes (12 cupcakes)
Total number of cupcakes Sean orders=5(12)+3.5(12)
=60+42
=102 cupcakes