Where are the answers to the checkpoints and end-of-section exercises in MyMathLabs online text?
To see the answers to the checkpoints and the end-of-section exercises, go into the “online textbook” in MML, then scroll down to the bottom of that page to “answers to selected exercises”. The Student Solution Manual with complete solutions to about half of the end-of-section exercises is usually available in PDF form in either “online textbook -> tools for success” or in “supplements/support’ (it depends on the class set-up and publishers offerings).