How-to books make up 0.3 of the books in the school library. Of these, 0.2 deal with carpentry and 0.4 deal with electronics.

0.3 x 0.4= 0.12
Interpret what the answer 0.12 represents in this equation above.

The answer 0.12 represents the proportion of books in the school library that deal with both how-to books and electronics.

The answer 0.12 represents the proportion of books in the school library that deal with both electronics and carpentry. More specifically, it indicates that out of the total number of books in the library, 0.12 of them are books that cover both carpentry and electronics.