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

0.3×0.4=0.12

Interpret what the answer 0.12 represents in this equation above.

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

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