How do I use the e-calendar invitation I get by email to accept an appointment from MINT?

There are three ways to accept an appointment using this email invitation:

• In the email itself, scroll down until you see “Going?” Then click the link for “YES” or “NO.”
• Or, open the calendar app you have synced to your email address on your computer or phone, then open the appointment invitation shown on your calendar, and click “ACCEPT” or “DECLINE.”
• If you already use Google Calendar, your email will look a little different, and you can click “YES” or “NO” in the top part of the email message.