Answers to "Math With Pizzazz" problems are available both throughout the book sections and in answer keys located in the back of the books. McGraw Hill Education provides samples from "Math With Pizzazz" that includes sample answers, and some schools have uploaded copies of the books with the answer keys.
Kenton County School District and West Ada School District both have uploaded versions of "Math With Pizzazz" on their websites. Kenton County uploads entire books, including the answer keys at the end. West Ada only uploads segments, but these include solutions to the individual sections within the sections themselves. Access these resources by going to the district websites and typing "Pizzazz" into each website's search bar.