It is easy to infer from the first three pictures: a pair of shoes =10; A refrigerator = 5; A bottle of milk =2 pounds.

In the third picture, notice that there are two more bottles of milk in the refrigerator. One bottle is six bottles of milk.

The fourth picture is a shoe. There are three bottles of milk in the refrigerator. The second operation is multiplication.

The final figure is: a shoe+(including three bottles of milk) refrigerator × a bottle of milk =5+(6+5)×2=27.